He who makes a beast of himself gets rid of the pain of being a man.

Who makes us ignorant? We ourselves. We put our hands over our eyes and weep that it is dark.

Sickness is mankind's greatest defect.

Of mankind we may say in general they are fickle, hypocritical, and greedy of gain.

A woman's chastity consists, like an onion, of a series of coats.

Humanism was not wrong in thinking that truth, beauty, liberty, and equality are of infinite value, but in thinking that man can get them for himself without grace.

As far as I knew white women were never lonely, except in books. White men adored them, Black men desired them and Black women worked for them.

Human history is in essence a history of ideas.

All is in the hands of man. Therefore wash them often.

I can calculate the motion of heavenly bodies but not the madness of people.

A man has to learn that he cannot command things, but that he can command himself; that he cannot coerce the wills of others, but that he can mold and master his own will: and things serve him who serves Truth; people seek guidance of him who is master of himself.

People are more difficult to work with than machines. And when you break a person, he can't be fixed.

Stupid men are often capable of things the clever would not dare to contemplate...

The capacity to suffer varies more than anything that I have observed in human nature.

Poverty is... Curable like any disease. Ignorance, dependence, inefficiency, laziness, want of the spirit of enterprise are the real real causes of poverty.

Each man is questioned by life; and he can only answer to life by answering for his own life; to life he can only respond by being responsible.

After your death you will be what you were before your birth.

Great minds discuss ideas. Average minds discuss events. Small minds discuss people.

Every form of addiction is bad, no matter whether the narcotic be alcohol, morphine or idealism.

I just invent, then wait until man comes around to needing what I've invented.

How important it is for us to recognize and celebrate our heroes and she-roes!