爱是一种行动，而不仅仅是一种感觉。

The dead are not lost. They are just out of sight.

The only limit to our realization of tomorrow will be our doubts of today.

(Physics is) a good framework for thinking....Boil things down to their fundamental truths and reason up from there.

Climate change isn't a future threat - it's reshaping our fields today.

除非你学会如何失败，否则你无法获胜。