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

I've learned that you can tell a lot about a person by the way (s)he handles these three things: a rainy day, lost luggage, and tangled Christmas tree lights.

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

To live alone is the fate of all great souls.

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.

The great gift of human beings is that we have the power of empathy, we can all sense a mysterious connection to each other.

A human being is a deciding being.

You may turn into an archangel, a fool, or a criminal ? no one will see it. But when a button is missing?everyone sees that.

Everything can be taken from a man or a woman but one thing: the last of human freedoms to choose one's attitude in any given set of circumstances, to choose one's own way.

All sins are attempts to fill voids.

It is a waste of energy to be angry with a man who behaves badly, just as it is to be angry with a car that won't go.

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

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

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

All of humanity's problems stem from man's inability to sit quietly in a room alone.

Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.

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

He that wrestles with us strengthens our nerves and sharpens our skill. Our antagonist is our helper.

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

Take away paradox from the thinker and you have a professor.

To understand how any society functions you must understand the relationship between the men and the women.