你的冰无法冻结是因为我。
The function of freedom is to free someone else.
The difference between a moral man and a man of honor is that the latter regrets a discreditable act even when it has worked.
可持续性不仅仅是一个目标,更是我们对后代的责任。
要理解心理学,就要在自然环境中观察行为。