Mathematics is not a spectator sport; to understand it, one must engage with it actively.
最勇敢的行为仍然是为自己思考,而且是大声说出来。
The causal model is the key to making sense of the world.
I’m not perfect, and I don’t pretend to be.
一生中成功投资所需的就是几个大赢家,这些赢家的收益将远远超过那些不成功的股票的损失。