Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

You can't have the good without the bad. So I just take the bad with the good and move on.

教学的艺术是帮助发现的艺术。

"The past is not dead; it is not even past."

We Irish are too poetical to be poets; we are a nation of brilliant failures, but we are the greatest talkers since the Greeks.

I think the best actors are the ones who are willing to be vulnerable and open themselves up to the possibility of failure.

The human figure is the most direct way to engage with political and social issues.