Worry - a God, invisible but omnipotent. It steals the bloom from the cheek and lightness from the pulse; it takes away the appetite, and turns the hair gray.

Never apologize for showing feeling. When you do so, you apologize for the truth.

The secret of success is constancy of purpose.

Cleanliness and order are not matters of instinct; they are matters of education, and like most great things, you must cultivate a taste for them.

Nurture your mind with great thoughts, for you will never go any higher than you think.

Action may not always bring happiness; but there is no happiness without action.

Courage is fire, and bullying is smoke.

One secret of success in life is for a man to be ready for his opportunity when it comes.

Time is precious, but truth is more precious than time.

Never complain and never explain.

Finality is not the language of politics.

By denying scientific principles, one may maintain any paradox.

Vulnerability gives us freedom, power and connects us to a network of injured souls. It is through the art of being real that we can heal ourself and others.

The closing years of life are like the end of a masquerade party, when the masks are dropped.

While formal schooling is an important advantage, it is not a guarantee of success nor is its absence a fatal handicap.

For nature by the same cause, provided it remain in the same condition, always produces the same effect, so that either coming-to-be or passing-away will always result.

A secret remains a secret until you make someone promise never to reveal it.

Laws of nature don't know they are "fixed." That's a human pattern seeking description that comes out of our need to survive. It isn't an objective description of anything.

Only the philosophical question is perennial, not the answers.

Love makes us similar, it creates equality, it breaks down walls and eliminates distances. God did this with us.

When I first started, I didn't really know how to structure a play. I could write dialogue, but I just sort of failed beyond that, and kind of went wherever I wanted to go.