All human actions have one or more of these seven causes: chance, nature, compulsions, habit, reason, passion and desire.

All human actions have one or more of these seven causes: chance, nature, compulsions, habit, reason, passion and desire.

所有人类行为都有以下七个原因中的一个或多个:机会、自然、强迫、习惯、理性、激情和欲望。

-- Aristotle 亚里士多德