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

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

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

Nature never excuses lapses.

Man knows so much and does so little.

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.

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.

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

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

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

One of the most common causes of failure is the habit of quitting when one is overtaken by temporary defeat.

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

At fifteen life had taught me undeniably that surrender, in its place, was as honorable as resistance, especially if one had no choice.

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

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

Great services are not canceled by one act or by one single error.

Failure cannot cope with persistence.

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

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