Tomorrow hopes we have learned something from yesterday.

Each problem that I solved became a rule which served afterwards to solve other problems.

Experience teaches us that it is much easier to prevent an enemy from posting themselves than it is to dislodge them after they have got possession.

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

Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.

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

The oldest, shortest words- 'yes' and 'no'- are those which require the most thought.

Tact is the knack of making a point without making an enemy.

Colorless green ideas sleep furiously

What can't be cured must be endured.

Immoderate desire is the mark of a child, not a man.

Rest satisfied with doing well, and leave others to talk of you as they please.

A man is literally what he thinks.

Common sense is in spite of, not as the result of education.

If we know exactly where we're going, exactly how to get there, and exactly what we'll see along the way, we won't learn anything.

All that we see or seem is but a dream within a dream.

What you're thinking is what you're becoming.

There are four ways, and only four ways, in which we have contact with the world. We are evaluated and classified by these four contacts: what we do, how we look, what we say, and how we say it.

There are two educations. One should teach us how to make a living and the other how to live.

By three methods we may learn wisdom: first, by reflection which is noblest; second, by imitation, which is the easiest; and third, by experience, which is the bitterest.

Every intelligent individual wants to know what makes him tick, and yet is at once fascinated and frustrated by the fact that oneself is the most difficult of all things to know.