All is flux; nothing stays still.

He who is fixed to a star does not change his mind.

He who lives in harmony with himself lives in harmony with the universe.

Ignorant men don’t know what good they hold in their hands until they’ve flung it away.

When the solution is simple, God is answering.

All achievements, all earned riches, have their beginning in an idea.

Do not turn back when you are just at the goal.

You can’t trust without risk but neither can you live in a cocoon.

All perceiving is also thinking, all reasoning is also intuition, all observation is also invention.

Error is discipline through which we advance.