Failure is not a prerequisite for success.

Evolution doesn't linger on past failures, it's always building upon what worked. So should you.

Use this time to make mistakes without the whole world hearing about them. Keep tweaking. Work out the kinks. Test random ideas. Try new things. No one knows you, so it's no big deal if you mess up. Obscurity helps protect your ego and preserve your confidence.

Another common misconception: You need to learn from your mistakes. What do you really learn from mistakes? You might learn what not to do again, but how valuable is that? You still don't know what you should do next. Contrast that with learning from your successes.

A problem is a chance for you to do your best

Her failure was a useful preliminary to success.

Sometimes life seems like a match between oneself and one's gaolors. The gaolers, of course, are one's mistakes; and the question is, who'll hold out longest? When I think of that, life instead of being too long, seems as short as a winter day....

to be able to look life in the face: that's worth living in a garret for, isn't it?

Will-power, he saw, was not a thing one could suddenly decree oneself to possess. It must be built up imperceptibly and laboriously out of a succession of small efforts to meet definite objects, out of the facing of daily difficulties instead of cleverly eluding them, or shifting their burden on others.

There is no fate that cannot be surmounted by scorn.

a person who never make a mistake, never tried anything new.

Anyone who has never made a mistake has never tried anything new.