The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.
Self-love， then， is a necessary principle of action.
过去从未死去，它甚至不是过去。
The best art comes from the struggle between control and chaos.
【释义】君子常思虑长远的大事，时时反躬自省，就没有眼前突来的祸患。