I often regret that I have spoken; never that I have been silent.

The pain of the mind is worse than the pain of the body.

You can accomplish by kindness what you cannot by force.

Every question does not deserve an answer.

There is no fruit which is not bitter before it is ripe.

No one reaches a high position without daring.

Never promise more than you can perform.

Yesterday should be the teacher of today.

A wise man will be master of his mind, a fool will be its slave.

It matters not what you are thought to be, but what you are.

The wickedness of the few makes the calamity of the many.

Would you have a great empire? Rule over yourself.

A tongue prone to slander is the proof of a depraved mind.

You don't know what you can do until you try.

The evil you do to others you may expect in return.

Observation, not old age, brings wisdom.

From the errors of others, a wise man corrects his own.

To be successful is to be helpful, caring and constructive, to make everything and everyone you touch a little bit better.

Problems are to the mind what exercise is to the muscles, they toughen and make strong.