When you're passionate about something you want it to be all it can be. But in the endgame of life I fundamentally believe the key to happiness is letting go of that idea of perfection.

I do believe that if you haven't learnt about sadness you cannot appreciate happiness.

It is necessary to the happiness of man that he be mentally faithful to himself. Infidelity does not consist in believing or in disbelieving it consists in professing to believe what he does not believe.

Are you bored with life? Then throw yourself into some work you believe in with all your heart live for it die for it and you will find happiness that you had thought could never be yours.

To attain happiness in another world we need only to believe something while to secure it in this world we must do something.

A large part of acting is just pretending. You get to work with these other great make-believers all making believe as hard as they can.

I have a great mind to believe in Christianity for the mere pleasure of fancying I may be damned.

The stupid believe that to be truthful is easy only the artist the great artist knows how difficult it is.

A great tennis career is something that a 15-year-old normally doesn't have. I hope my example helps other teens believe they can accomplish things they never thought possible.

There seems to be a terrible misunderstanding on the part of a great many people to the effect that when you cease to believe you may cease to behave.