The essence of mathematics lies in its freedom.
The best time to start investing in your relationships is in your 20s.
Every mental state exists for a purpose; to understand it, we must ask what function it serves in the broader system of behavior.
只有小孩子知道自己在找什么。他们把时间花费在布洋娃娃身上。因此对他们而言,洋娃娃就变得很重要。一旦有人将娃娃拿走,他们就会号啕大哭……
我学校里其他孩子都很蠢。虽然我不应该叫他们蠢,即使他们确实如此。
有人今天坐在树荫下,因为他很久以前种了一棵树。