科学中最重要的工具不是显微镜，而是思维。

Keep all your things visible in a hotel room， not in drawers， and all gathered into one spot. That way you’ll never leave anything behind. If you need to have something like a charger off to the side， place a couple of other large items next to it， because you are less likely to leave 3 items behind than just one.

[物理学是]一种良好的思考框架。将事物归结为他们的基本真理，然后从那里推理出来。

No one is an artist unless he carries his picture in his head before painting it.

应对不自由世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反叛。