But then every man is ludicrous if you look at him from outside, without taking into account what's going on in his heart and mind.

At any street corner the feeling of absurdity can strike any man in the face.

Sometimes I ain’t sho who’s got ere a right to say when a man is crazy and when he ain't. Sometimes I think it ain't none of us pure crazy and ain't none of us pure sane until the balance of us talks him that-a-way. It’s like it ain't so much what a fellow does, but it’s the way the majority of folks is looking at him when he does it. […] That’s how I reckon a man is crazy. That’s how he can’t see eye to eye with other folks. And I reckon they ain't nothing else to do with him but what the most folks says is right.

No one but a fool would say that a man who seethes inside like a volcano is calm.
I only know that when I see a man so tormented and cheated, and with such a look in his eyes, he is dangerous.

. . . The fallacious use of the principle that you cannot look into a man's mind. It is said you cannot do that: therefore what follows? It is said that you are to have fixed rules to tell you that he must have meant something, one way or the other, when certain exterior phenomena arise. The answer is that there is no such thing as an absolute criterion which gives you certain index to a man's mind. There is nothing outside his mind which is an absolute indication of what is going on inside. So far from saying that you cannot look into a man's mind, you must look into it, if you are going to find fraud against him: and unless you think you see what must have been in his mind, you cannot find him guilty of fraud.

Everything hangs on one’s thinking… A man is as unhappy as he has convinced himself he is.

Men under stress are fools, and fool themselves.

The greatest deception men suffer is from their own opinions.

So many shapes have women for deceit,
That every man's a fool, when we think fit.

A man must be excessively stupid, as well as uncharitable, who believes that there is no virtue but on his own side, and that there are not men as honest as himself who may differ from him in political principles.

Everything hangs on one's thinking...A man is as unhappy as he has convinced himself he is.

Everything hangs on one’s thinking...A man is as unhappy as he has convinced himself he is.

If a man thinks he is not conceited, he is very conceited indeed.

Through certain humors or passions, and from temper merely, a man may be completely miserable, let his outward circumstances be ever so fortunate.