Pessimists are usually right and optimists are usually wrong but all the great changes have been accomplished by optimists.

(Billy) Graham went through passages of hypochondria and his closest friends had to assure him that he was not about to die.

I am going to hold a pistol to the head of the Modern Man. But I shall not use it to kill him–only to bring him to life.

When things are at their blackest, I say to myself, 'Cheer up, things could be worse.' And sure enough, they get worse.

The optimist lives on the peninsula of infinite possibilities; the pessimist is stranded on the island of perpetual indecision.

It had gotten to the point where it seemed like nothing matters, because I’m not a real person and neither is anyone else.

The mistakes of doctors are innumerable. They err as a rule out of optimism as to the treatment, and pessimism as to the outcome.

Der Mensch kann tun was er will; er kann aber nicht wollen was er will.Man can do what he wills but he cannot will what he wills.

He wastes his time over his writing, trying to accomplish what geniuses and rare men with college educations sometimes accomplish.

Life is a huge farce, and the advantage of possessing a sense of humour is that it enables one to defy fate with mocking laughter.

I hope to-morrow will be a fine day, Lane.It never is, sir.Lane, you're a perfect pessimist.I do my best to give satisfaction, sir.

To a pessimist, losing bobby pins is as hopeless as losing hair. To an optimist, losing hair gives hope to get the lost bobby pins back.

Sometimes I get the feeling the whole world is against me, but deep down I know that's not true. Some smaller countries are neutral.

I had always detested the meddlesome alarmist, who veils ignorance under noisiness, and for ever wails his chant of lugubrious pessimism.

Some things are hard to imagine. Can you conceive of excessive contentment, for example? Or an over pleasant evening? Too much happiness?