To be the cynosure of all eyes, do the extraordinary when you are least expected.

Happy is the soul that has a friend. Happier is the soul that trusts in the truth of the heart of a friend. Happiest is the soul that knows the solemnity of friendship and honours its laws.

To be happy, you have to risk being unhappy.

Like love, like talent, like any other virtue, like anything else in this life, happiness needs to be nurtured - this is the truth of the whole matter.

The face of a truly happy man seldom lacks smiles.

Always be happy, you never know how happy you can make another by just being happy.

Happiness springs up from within. Do not seek it without.

It is better to hope less than to be hopeless.

Where would we have been without the discoveries of our predecessors, and where are we going without your discoveries?

Knowing trees, I came to realize, understand and appreciate the act of patience.

If your failure is not a lesson, it's indeed a failure.

Today is life-the only life you are sure of. Make the most of today.

Only after realising that routine immunisations were dangerous did I achieve a substantial drop in infant death rates.

It's much easier to have one swing thought than many.

No matter how fair the sun shines, Still it must set.

Comedy is my passion. I'm going to do this until I drop.

That's one of my biggest obstacles. I'm afraid of failure. I want to succeed so bad that I become afraid of failing.

Any friend of fossil is a friend of mine... We’ve got to do everything we can to get people out of their automobiles and into mass transit.

I usually like to make really dramatic songs that are dynamic from part to part - a lot of jumping from really quiet to really loud.

The desire to be rewarded for one's creativity does not justify depriving the world in general of all or part of that creativity.

Don't believe everything you think.