Good means not merely not to do wrong, but rather not to desire to do wrong.

Loneliness adds beauty to life. It puts a special burn on sunsets and makes night air smell better.

Never ruin an apology with an excuse.

There is geometry in the humming of the strings. There is music in the spacing of the spheres.

Everything excellent is as difficult as it is rare.

I don't know, I don't care, and it doesn't make any difference.

Bitterness is like cancer. It eats upon the host. But anger is like fire. It burns it all clean.

The noblest pleasure is the joy of understanding.

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

Beauty is not in the face; beauty is a light in the heart.

We learn from our gardens to deal with the most urgent question of the time: How much is enough?

Generosity is giving more than you can, and pride is taking less than you need.

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

Life's battles don't always go to the stronger or faster man. But sooner or later, the man who wins is the man who thinks he can.

When you learn, teach, when you get, give.

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.

It is a cliche that most cliches are true, but then like most cliches, that cliche is untrue.

A person reveals his character by nothing so clearly as the joke he resents.

Don't criticize what you don't understand, son. You never walked in that man's shoes.

He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.

The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.