He who knows that enough is enough will always have enough.

The more you are willing to accept responsibility for your actions, the more credibility you will have.

The measure of intelligence is the ability to change.

To exist is to change, to change is to mature, to mature is to go on creating oneself endlessly.

Imagination is more important than knowledge.

“Excellence is to do a common thing in an uncommon way.”

Simple things should be simple, complex things should be possible.