Pessimist: One who, when he has the choice of two evils, chooses both.
悲观主义者是这种人：当他可以从两种罪恶中选择时，他把两种都选了。
If we want to protect forests, we must first understand them.
Civil law is what each people establishes for itself.
The anarchic nature of the international system means that states must rely on self-help to ensure their survival.
数学的美在于它能够用一种既精确又普遍的语言来描述宇宙。
主题并不重要；我想表现的是主题与我之间的东西。
The true adventurer goes forth aimless and uncalculating to meet and greet unknown fate.
当天赋不努力时，勤奋胜过天赋。