If we'd stop trying to be happy we could have a pretty good time. Edith Wharton
A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying. B. F. Skinner
The only way to beat the competition is to stop trying to beat the competition. W. Chan Kim
I have never learned to draw a hand well enough, so why should I stop trying now? Jack Levine
I would gladly admit women are superior to men if only they would stop trying to be the same as us. Sacha Guitry
Shouldn't I join the ranks of philosophers and merely make unsubstantiated claims about the wonders of human consciousness? Shouldn't I stop trying to do some science and keep my head down? Indeed not. Kevin Warwick