粒子的概念只是一种近似，仅在特定极限情况下有效。

The beauty of mathematics lies in its ability to reveal the underlying simplicity in what appears to be complex.

过去是一个参考的地方，而不是居住的地方。

Investors should focus on what they can control: costs, diversification, and time horizon.

Illness is the night-side of life, a more onerous citizenship. Everyone who is born holds dual citizenship, in the kingdom of the well and in the kingdom of the sick.

有志之士珍惜每一年的光阴；贤德之人，珍惜每一天的光阴；而圣人则会珍惜每一寸的光阴。

忙碌是一种懒惰——懒惰的思考和盲目的行动。