Doubt is the origin of wisdom

Jealousy is the tribute mediocrity pays to genius.

Experience keeps a dear school, but fools will learn in no other.

It is better to remain silent and be thought a fool than to open one's mouth and remove all doubt.

The lie is a condition of life.

Never ruin an apology with an excuse.

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

In moments of great grief, that’s where you look and immerse yourself. You realise you are not immortal, you are not a god, you are part of the natural world and you come to accept that.

Your inner world has its own taste, has its own fragrance, has its own light. And it is utterly silent.

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

If you don't know where you're from, you'll have a hard time saying where you're going.

Those who know, do. Those that understand, teach.

Whatever it is you're seeking won't come in the form you're expecting.

Think globally, act locally.

Judge a man by his questions rather than by his answers.

It's not a question of learning much.On the contrary.It's a question of UNLEARNING much.

Without courage, wisdom bears no fruit.

It is necessary to keep one's compass in one's eyes and not in the hand, for the hands execute, but the eye judges.

Nothing is more intolerable than to have to admit to yourself your own errors.

Strength does not come from physical capacity. It comes from an indomitable will.

Courage is resistance to fear, mastery of fear - not absence of fear.