所有行为最终都可简化为物理和化学过程。
All behavior is ultimately reducible to physical and chemical processes.
Anxiety is the dizziness of freedom.
The unexamined life is not worth living.
阅读的习惯是唯一没有掺杂任何杂质的享受;当所有其他乐趣消失时,它依然存在。