No individual has any right to come into the world and go out of it without leaving behind him distinct and legitimate reasons for having passed through it.

Efficiency is doing things right; effectiveness is doing the right things.

The world is not a mere sum of sensations, but an organized whole.

I will always be grateful to my poor parents. I owe everything to them， my education， my life， and any success I have had.

释义：与敌人交战之前，必须仔细分析和了解敌人的情况，然后才能制定作战计划和出兵，以确保行动的成功。