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

The greatest minds are capable of the greatest vices as well as of the greatest virtues.

Science may set limits to knowledge, but should not set limits to imagination.

Respect yourself if you would have others respect you.

He who is slowest in making a promise is most faithful in its performance.

Choose rather to be strong of soul than strong of body.

In the practice of tolerance, one's enemy is the best teacher.

There is always time to add a word, never to withdraw one.

Whatever the mind of man creates, should be controlled by man's character

The greatest power we have is the power of choice.

Convictions are more dangerous enemies of truth than lies.

The ultimate authority must always rest with the individual's own reason and critical analysis.

A man is literally what he thinks.

There is an art, or rather a knack to flying. The knack lies in learning how to throw yourself at the ground and miss.

Nothing is so strong as gentleness, nothing so gentle as real strength

Whatever you think the world is withholding from you, you are withholding from the world.

In anger we should refrain both from speech and action.

The future is uncertain but the end is always near.

I've come to believe that all my past failure and frustration were actually laying the foundation for the understandings that have created the new level of living I now enjoy.

Chaos is a name for any order that produces confusion in our minds.

There are no eternal facts, as there are no absolute truths.