A desire presupposes the possibility of action to achieve it; action presupposes a goal which is worth achieving.

A desire presupposes the possibility of action to achieve it; action presupposes a goal which is worth achieving.

欲望的前提是有可能采取行动来实现它;行动的前提是有一个值得实现的目标。

-- Ayn Rand 艾恩·兰德