I wanted to change the world. But I have found that the only thing one can be sure of changing is oneself.

A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.

You always admire what you really don't understand.

The road of excess leads to the palace of wisdom.

A crust eaten in peace is better than a banquet partaken in anxiety.

The greatest of all mistakes is to do nothing because you think you can only do a little

To me, being an intellectual doesn't mean knowing about intellectual issues; it means taking pleasure in them.

One never notices what has been done; one can only see what remains to be done.

You place too much importance... on the so-called purity of blood! You fail to recognize that it matters not what someone is born, but what they grow to be!

When you undervalue what you do, the world will undervalue who you are

Promises are like crying babies in a theater, they should be carried out at once.

It has seemed to be more necessary to have regard to the weight of words rather than to their number.

Between stimulus and response there is a space. In that space is our power to choose our response. In our response lies our growth and our freedom.

The heart has its reasons which reason knows not.

You don't become what you want, you become what you believe

Wrong life cannot be lived rightly.

It takes a great deal of bravery to stand up to our enemies, but just as much to stand up to our friends.

The future is uncertain but the end is always near.

One who deceives will always find those who allow themselves to be deceived.

Let him who would move the world first move himself.

What can't be cured must be endured.