If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.
对于有信仰的人，不需要解释。对于没有信仰的人，解释是不可能的。
能够容忍你无知的人，可称之为真正的朋友。
称为颜子，没有不高兴的，虽颜回贫贱短寿。称人为盗跖，没有不发怒的，虽发不义之财且长期寿。
实现明天的唯一限制是我们今天的疑虑。
The best thing to hold onto in life is each other.