It is harder to fight against pleasure than against anger.

Truth in all its kinds is most difficult to win; and truth in medicine is the most difficult of all.

Belief is the enemy of knowledge.

It is harder to fool the conscience than the mind. The conscience is capable of fighting long and hard against the mind deluded by its love of sin.

It is more difficult to undermine faith than knowledge, love succumbs to change less than to respect, hatred is more durable than aversion, and at all times the driving force of the most important changes in this world has been found less in a scientific knowledge animating the masses, but rather in a fanaticism dominating them and in a hysteria which drove them forward.

Fools are more hard to conquer than persuade.

Disbelief is more resistant than faith because it is sustained by the senses.

The truth, however, is that the conflict between religion and science is unavoidable. The success of science often comes at the expense of religious dogma; the maintenance of religious dogma always comes at the expense of science.

If the reader questions whether there is still war between science and dogma, I must reply that there always will be as long as knowledge is opposed to ignorance. To know requires exertion, and it is intellectually easiest to shirk effort altogether by accepting phrases which cloak the unknown in the undefinable.

It is always easier to fight for one's principles than to live up to them.

you will know that it is a more difficult work to reject the opinion of others than to establish your own.

Reason is the greatest enemy that faith has: it never comes to the aid of spiritual things, but--more frequently than not--struggles against the divine Word, treating with contempt all that emanates from God.

...Catholic versus Protestant, essentially. It's that kind of fight. ... And it goes on to this day. Will we never learn? Who knows? Religion. Shit it.

It is much harder to struggle against irrelevance than against exploitation.