Humanity is acquiring all the right technology for all the wrong reasons.

To live alone is the fate of all great souls.

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

What sunshine is to flowers, smiles are to humanity. These are but trifles, to be sure; but scattered along life's pathway, the good they do is inconceivable.

There are four million different kinds of animals and plants in the world. That’s four million solutions to the problem of staying alive.

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

You climb to reach the summit, but once there, discover that all roads lead down.

Everyone has his own specific vocation or mission in life; everyone must carry out a concrete assignment that demands fulfillment. Therein he cannot be replaced, nor can his life be repeated, thus, everyone's task is unique as his specific opportunity to implement it.

Human history is in essence a history of ideas.

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

People demand freedom of speech as a compensation for the freedom of thought which they seldom use.

No mortal can keep a secret. If the lips are silent, he chatters with his fingertips; betrayal oozes out of him at every pore.

It is no measure of health to be well adjusted to a profoundly sick society.

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

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

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

The highest forms of understanding we can achieve are laughter and human compassion.

Men always talk about the most important things to perfect strangers.

A man's first care should be to avoid the reproaches of his own heart.

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

Human nature is not totally fixed, but on any realistic scale, evolutionary processes are much too slow to affect it.