唯一的善，是知识；唯一的恶，是无知。
The only good is knowledge and the only evil is ignorance.
适合从事任何特定行业的人，如果没有完全不同教育背景的人的友好帮助和合作，就无法理解该行业的科学。
I have often been asked how my plays come about. I cannot say. Nor can I ever explain to myself what they mean.
科学不仅是理性的学科，也是浪漫和激情的学科。