别难过……世界上有许多人还不知道他们到底是谁或什么。

The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe.

The laws that forbid the carrying of arms are laws of such a nature. They disarm only those who are neither inclined nor determined to commit crimes.... Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.

Love is a hole in the heart.

Never underestimate the power of small, consistent steps toward a larger goal.

与在现实世界中实现客观理性行为所需解决的问题规模相比，人类心智制定和解决复杂问题的能力非常有限。