Make the best use of what is in your power, and take the rest as it happens.

The secret of joy in work is contained in one word — excellence. To know how to do something well is to enjoy it.

There is no sin except stupidity.

Blindness cuts us off from things, but deafness cuts us off from people.

You are what you do, not what you say you'll do.

Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.

The power of intuitive understanding will protect you from harm until the end of your days.