Conflict may be defined as a situation of competition in which the parties are aware of the incompatibility of potential future positions, and in which each party wishes to occupy a position that is incompatible with the wishes of the other.

Conflict is viewed as the active striving for one's own preferred outcome which, if attained, precludes the attainment by others of their own preferred outcome, thereby producing hostility.

A conflict is to be characterized psychologically as a situation in which oppositely directed, simultaneously acting forces of approximately equal strength work upon the individual.

Conflict may be personal, interpersonal, or between rival groups or coalitions. It may be built into organizational structures, roles, attitudes, and stereotypes or arise over a scarcity of resources. It may be explicit or covert. Whatever the reason, and whatever the form it takes, its source rests in some perceived or real divergence of interests.

[Conflict can be defined] as the opposition of approximately equally strong field forces.

Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates invention. It shocks us out of sheep-like passivity, and sets us at noting and contriving…conflict is a sine qua non of reflection and ingenuity.

Conflict... is a theme that has occupied the thinking of man more than any other, save only God and love. In the vast output of discourse on the subject, conflict has been treated in every conceivable way. It has been treated descriptively, as in history and fiction; it has been treated in an aura of moral approval, as in epos; with implicit resignation, as in tragedy; with moral disapproval, as in pacifistic religions. There is a body of knowledge called military science, presumably concerned with strategies of armed conflict. There are innumerable handbooks, which teach how to play specific games of strategy. Psychoanalysts are investigating the genesis of "fight-like" situations within the individual, and social psychologists are doing the same on the level of groups and social classes.

The purpose of conflict is to create.

It seems reasonable to suppose that conflict does exhibit many general patterns, that the patterns of conflict in industrial relations, international relations, interpersonal relations, and even animal life are not wholly different from one another, and that it is, therefore, worth looking for the common element. On the other hand, we should be surprised if there were no differences; the pattern of conflict in international relations, for instance, is not the same as in industrial or interpersonal relations. Just as it is important to perceive the similarities in different situations, so it is important to perceive the differences. These differences cannot be perceived, however, without a general theory to serve as a standard of comparison.

The cause of conflict is some fixed idea or one-sided idea. When everyone knows the value of pure practice, we will have little conflict in our world.

We cannot avoid conflict, conflict with society, other individuals and with oneself. Conflicts may be the sources of defeat, lost life and a limitation of our potentiality but they may also lead to greater depth of living and the birth of more far-reaching unities, which flourish in the tensions that engender them.

Before we can proceed to a formal definition of conflict we must examine another concept, that of behavior space. The position of a behavior unit at a moment of time is defined by a set of values (subset, to be technical) of a set of variables that defines the behavior unit. These variables need not be continuous or quantitatively measurable. The different values of a variable must, however, be capable of simple ordering; that is, of any two values it must be possible to say that one is 'after' (higher, lefter, brighter than) the other.

Disaster originates in an initial overreaction to Conflict and then escalates to the level of gross Abuse. It is at the Conflict stage that the hideous future is still not inevitable and can be resolved. Once the cruelty and perhaps violence erupts, it is too late. Or at least requires a level of repair outside of the range of what many of us will do without encouragement and support. Conflict, after all, is rooted in difference and people are and always will be different. With the exception of those natural disasters that are not caused by human misdeed, most of the pain, destruction, waste, and neglect towards human life that we create on this planet and beyond, are consequences of our overreaction to difference. This is expressed through our resistance to facing and resolving problems, which is overwhelmingly a refusal to change how we see ourselves in order to be accountable. Therefore how we understand Conflict, how we respond to Conflict, and how we behave as bystanders in the face of other people’s Conflict determines whether or not we have collective justice and peace.

The purpose of formulating [a] conflict as a game is not that of resolving the conflict by 'solving the game.' It is that of displaying the structure of the conflict and thereby exposing features of it that may be concealed by rhetoric. In particular, appreciation of the peculiar structure of some of the so-called mixed—motive conflicts represented nonzero-sum games may change the conflicting parties' perception of their situation.