According to his opinion, man should only believe what he can grasp with his intellectual faculties, or perceive by his senses, or what he can accept on trustworthy authority. Beyond this nothing should be believed.

It’s what a man thinks is true which controls his actions, not what is really true.

Is a man truly what he see himself to be?'

'Only if what he sees is true.

a man only knows what he's experienced

The human mind may perceive truth only through thinking, as is clear from Augustine.

Man can embody truth but he cannot know it.

Man can embody the truth but he cannot know it.

Men's views of things are the result of their understanding alone. Their conduct is regulated by their understanding, their temper, and their passions.

Man is what he believes.

In human affairs, all that endures is what men think.

Only man can be absurd: for only man can be dignified.

A man is literally what he thinks.

Two things are to be remembered: that a man whose opinions and theories are worth studying may be presumed to have had some intelligence, but that no man is likely to have arrived at complete and final truth on any subject whatever. When an intelligent man expresses a view which seems to us obviously absurd, we should not attempt to prove that it is somehow true, but we should try to understand how it ever came toseemtrue. Thisexercise of historical and psychological imagination at once enlarges the scope of our thinking, and helps us to realize how foolish many of our own cherished prejudices will seem to an age which has a different temper of mind.

What man knows only through feeling can be explained only through enthusiasm.