A man's as miserable as he thinks he is.
Lucius Annaeus Seneca

Coward: One who, in a perilous emergency, thinks with his legs.
Ambrose Bierce

We think too small, like the frog at the bottom of the well. He thinks the sky is only as big as the top of the well. If he surfaced, he would have an entirely different view.
Mao Tse-Tung

It is too difficult to think nobly when one thinks only of earning a living.
Jean Jacques Rousseau

There is a difference between happiness and wisdom: he that thinks himself the happiest man is really so; but he that thinks himself the wisest is generally the greatest fool.
Francis Bacon

Someone who thinks the world is always cheating him is right. He is missing that wonderful feeling of trust in someone or something.
Eric Hoffer

Everybody thinks that this civilization has lasted a very long time but it really does take very few grandfathers' granddaughters to take us back to the dark ages.
Gertrude Stein

Whoever thinks a faultless piece to see, Thinks what ne'er was, nor is, nor e'er shall be.
Alexander Pope

Man never thinks himself happy, but when he enjoys those things which others want or desire.
Alexander Pope

If somebody thinks they're a hedgehog, presumably you just give 'em a mirror and a few pictures of hedgehogs and tell them to sort it out for themselves.
Douglas Adams

So they ended up turning this little twenty eight page book into the movie. And it's all about this stinky, smelly ogre who doesn't care what anybody thinks of him.
Mike Myers

Every soldier thinks something of the moral aspects of what he is doing. But all war is immoral and if you let that bother you, you're not a good soldier.
Curtis Lemay

Woman, essentially a purist, is naturally bigoted and relentless in her effort to make others as good as she thinks they ought to be.
Emma Goldman

Youth cannot know how age thinks and feels. But old men are guilty if they forget what it was to be young.
J. K. Rowling

Let your tongue speak what your heart thinks.
Davy Crockett

Money is kind of a base subject. Like water, food, air and housing, it affects everything yet for some reason the world of academics thinks it's a subject below their social standing.
Robert Kiyosaki

The optimist thinks this is the best of all possible worlds. The pessimist fears it is true.
J. Robert Oppenheimer

Yes, I now that you feel you are not strong enough. That's what the enemy thinks too. But we're gonna fool them.
Knute Rockne

The ads all call me fearless, but that's just publicity. Anyone who thinks I'm not scared out of my mind whenever I do one of my stunts is crazier than I am.
Jackie Chan

Think left and think right and think low and think high. Oh, the thinks you can think up if only you try!
Theodor Geisel