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.
宇宙不仅比我们想象的更奇怪，它比我们能够想象的还要奇怪。
The human understanding， when it has once adopted an opinion， draws all things else to support and agree with it.
We must learn to listen to what materials want to say.