And above all things, never think that you're not good enough yourself. A man should never think that. My belief is that in life people will take you at your own reckoning. Isaac Asimov
In art, 'good enough' is not good enough. Ursula K. Le Guin
Revolutionary movements attract those who are not good enough for established institutions as well as those who are too good for them. George Bernard Shaw
Why is it that our memory is good enough to retain the least triviality that happens to us, and yet not good enough to recollect how often we have told it to the same person? François de La Rochefoucauld
The moral code which was good enough for our fathers is not good enough for our children. Marie von Ebner-Eschenbach
The reformer for whom the world is not good enough finds himself shoulder to shoulder with him that is not good enough for the world. George Bernard Shaw