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

A man sooner or later discovers that he is the master-gardener of his soul, the director of his life.

Cultivation of mind should be the ultimate aim of human existence.

It was to carry the American democratic journey beyond these failings that Black citizens and civil rights workers risked unemployment, violence and death.

A desire to be observed, considered, esteemed, praised, beloved, and admired by his fellows is one of the earliest as well as the keenest dispositions discovered in the heart of man.

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

If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals.

Though I love my country, I do not love my countrymen.

There is no come back to caves. We are too many.

I measure the progress of a community by the degree of progress which women have achieved.

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

The true measure of a man is how he treats someone who can do him absolutely no good.

Example is not the main thing in influencing others. It is the only thing.

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

Anyone who says he can see through women is missing a lot.

Ever more people today have the means to live, but no meaning to live for.

People who know little are usually great talkers, while men who know much say little.

That man is the noblest creature may also be inferred from the fact that no other creature has yet contested this claim.

The whole universe is contained within a single human being – you.

We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.

Are we happy that our grandchildren may never seen an elephant except in a picture book?