There are things known and there are things unknown, and in between are the doors of perception.

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

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

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

Nobody made a greater mistake than he who did nothing because he could do only a little.

The only real laughter comes from despair.

A man may imagine things that are false, but he can only understand things that are true.

Thought can be so seductive and hypnotic that it absorbs your attention totally, so you become your thoughts.

A perfection of means, and confusion of aims, seems to be our main problem.

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

If you do not know the laws of right conduct, you cannot form your character.

Think globally, act locally.

To live is not merely to breathe; it is to act; it is to make use of our organs, senses, faculties - of all those parts of ourselves which give us the feeling of existence

If you don't want to slip up tomorrow, speak the truth today.

Never do anything when you are in a temper, for you will do everything wrong.

Not everything that can be counted counts, and not everything that counts can be counted.

Intelligence is the ability to adapt to change.

He who chooses the beginning of the road chooses the place it leads to.

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

Everybody is ignorant, only on different subjects.

The cure for pain is in the pain.