I am the happiest creature in the world. Perhaps other people have said so before, but not one with such justice. I am happier even than Jane; she only smiles, I laugh.

The difference between a policy and a crusade is that a policy is judged by its results, while a crusade is judged by how good it makes its crusaders feel.

"The truth is rarely pure and never simple."

心理学家必须是一个细致的观察者。

The energy transition presents enormous economic opportunities if we get it right.