Learn from the mistakes of others. You can never live long enough to make them all yourself.

Intellectuals solve problems, geniuses prevent them.

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

Most of us have far more courage than we ever dreamed possible

There are no eternal facts, as there are no absolute truths.

Those who cannot work with their hearts achieve but a hollow, half-hearted success that breeds bitterness all around.

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

When playing board-games which involve quizzes etc, you will always know the answers to everyone else's set of questions but never your own.

Wise men speak because they have something to say; Fools because they have to say something.

Meditation will bring you sensitivity, a great sense of belonging to the world. It is our world - the stars are ours, and we are not foreigners here. We are part of it, we are the heart of it.

The road of excess leads to the palace of wisdom.

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

Reality leaves a lot to the imagination.

It is a wise man that does know the contented man is never poor, whilst the discontented man is never rich.

The most certain sign of wisdom is cheerfulness.

I don't know, I don't care, and it doesn't make any difference.

Thoughts without content are empty, intuitions without concepts are blind.

It’s your road and yours alone. Others may walk it with you, but no one can walk it for you.

Criticize the act, not the person.

Man is the only creature who refuses to be what he is.

The only limit to our realization of tomorrow will be our doubts of today.