The worst prison would be a closed heart.

Failure is the foundation of success, and the means by which it is achieved.

The fire that warms us can also consume us; it is not the fault of the fire.

Man knows so much and does so little.

Failure is not a single, cataclysmic event. You don't fail overnight. Instead, failure is a few errors in judgement, repeated every day.

To stumble twice against the same stone is a proverbial disgrace.

A person should not be too honest. Straight trees are cut first and honest people are screwed first.

Many of life's failures are people who did not realize how close they were to success when they gave up.

But man is not made for defeat,'he said. 'A man can be destroyed but not defeated.

The wise say that our failure is to form habits: for habit is the mark of a stereotyped world.

Failure cannot cope with persistence.

The chief cause of failure and unhappiness is trading what you want most for what you want right now

The errors of great men are venerable because they are more fruitful than the truths of little men.

Do not be afraid of mistakes, providing you do not make the same one twice.

If something's important enough, you should try. Even if you - the probable outcome is failure.

You have committed a double mistake, firstly by not keeping the engagement yesterday and secondly, by coming when you were not expected.

Failure is simply an opportunity to begin again, this time more intelligently.

Pollution is nothing but the resources we are not harvesting. We allow them to disperse because we've been ignorant of their value.

Any man can make mistakes, but only an idiot persists in his error.

Dream is not that you see in the sleep; dream is that does not allow you to sleep.

Failure is unimportant. It takes courage to make a fool of yourself.