人与人之间都是相互的。爱别人的人，别人一定也爱他；为别人谋求利益的人，别人也一定为其谋求利益；憎恨别人的人，别人一定也憎恨他；残害别人的人，别人也会残害他。

Change is uncomfortable, but stagnation is fatal.

The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.

Integrity is the foundation of all meaningful relationships.