母子关系是矛盾的，在某种意义上，是悲剧性的。它需要母亲最强烈的爱，然而这种爱必须帮助孩子离开母亲，变得完全独立。

A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

The challenge is to transform the constraints into opportunities.

每个区域都是整体的一部分，而整体反映在每个部分中。