Constant effort and frequent mistakes are the stepping stones to genius.

Conceit spoils the finest genius… and the great charm of all power is modesty.

In the ordinary business of life, industry can do anything which genius can do, and very many things which it cannot.

The especial genius of women I believe to be electrical in movement, intuitive in function, spiritual in tendency.

Do not be embarrassed by your mistakes. Nothing can teach us better than our understanding of them. This is one of the best ways of self-education.

The opposite is beneficial; from things that differ comes the fastest fairest attunement; all things are born through strife.

There will be obstacles. There will be doubters. There will be mistakes. But with hard work, there are no limits.

Feelings of worth can flourish only in an atmosphere where individual differences are appreciated, mistakes are tolerated, communication is open, and rules are flexible. The kind of atmosphere that is found in a nurturing family.

A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.

Knowledge rests not upon truth alone, but upon error also.

There is nothing so absurd or ridiculous that has not at some time been said by some philosopher.

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