Medicine heals diseases of the body, wisdom frees the soul from passions.

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

Those who can not change their minds can not change anything.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

Dark and difficult times lie ahead. Soon we must all face the choice between what is right and what is easy.

No one cares how much you know, until they know how much you care

There are no limitations to the mind except those we acknowledge.

The experience gathered from books, though often valuable,is but the nature of learning whereas the experience gained from actual life is of the nature of wisdom.

A good teacher protects his pupils from his own influence.

If you are neutral in situations of injustice, you have chosen the side of the oppressor.

There is nothing more uncommon than common sense.

The secret of life, though, is to fall seven times and to get up eight times.

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

Colorless green ideas sleep furiously

Man is not the creature of circumstances, Circumstances are the creatures of men.

We sometimes congratulate ourselves at the moment of waking from a troubled dream; it may be so the moment after death.

You cannot truly listen to anyone and do anything else at the same time.

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

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

For beautiful eyes, look for the good in others; for beautiful lips, speak only words of kindness; and for poise, walk with the knowledge that you are never alone.

Think no vice so small that you may commit it, and no virtue so small that you may over look it.