进化心理学不是关于人性中不可改变的部分，而是关于在我们祖先环境中具有适应性的部分。
Evolutionary psychology is not about what's unchangeable in human nature, but about what was adaptive in our ancestral environment.
Life seems to go on without effort when I am filled with music. ― George Eliot, The Mill on the Floss
去爱就是要变得脆弱。
A proposition is an assertion that something is or is not the case.
The future of a nation depends on today's education.