Wisdom... comes not from age, but from education and learning.

The most certain sign of wisdom is cheerfulness.

I am a lover of truth, a worshipper of freedom, a celebrant at the altar of language and purity and tolerance.

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact

A mistake is always forgivable, rarely excusable and always unacceptable.

Although our intellect always longs for clarity and certainty, our nature often finds uncertainty fascinating.

We must live together as brothers or perish together as fools.

To a wise and good man the whole earth is his fatherland.

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.

For we walk by faith, not by sight

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.

Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more

I think about the meaning of pain. Pain is personal. It really belongs to the one feeling it. Probably the only thing that is your own. I like mine.

You are the bows from which your children as living arrows are sent forth.

We never see ourselves as others see us.

Be frank and explicit. That is the right line to take when you wish to conceal your own mind and to confuse the minds of others.

Experience is merely the name men gave to their mistakes.

Empty your cup so that it may be filled; become devoid to gain totality.

How often it is that the angry man rages denial of what his inner self is telling him.

Learning and wisdom are superfluities, the surface glitter merely, but it is the heart that is the seat of all power.

Above all be of single aim; have a legitimate and useful purpose, and devote yourself unreservedly to it.