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.

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

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.

The purpose of conflict is to create.

Conflict can be viewed as repeated cycles of observing, orienting, deciding and acting by both sides, and also, I might add, at all levels. The adversary that can move through these cycles faster gains an inestimable advantage by disrupting his enemy's ability to respond effectively.

Conflict exists only when there are two opposing things: fear and non-fear,violence and non-violence.

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.

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.

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.

Without conflict, there can be no trust. Conflict exists to show us who is there for us unconditionally and who is just there for the benefits. No one trusts a yes-man.

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.

Political conflict is not like an intercollegiate debate in which the opponents agree in advance on a definition of the issues. As a matter of fact, the definition of the alternatives is the supreme instrument of power; the antagonists can rarely agree on what the issues are because power is involved in the definition.