I'm interested in the edges of things.

The rise of a new great power is always a cause for concern among existing powers, as it threatens the existing balance of power.

Theoretically there is a perfect possibility of happiness: believing in the indestructible element within oneself, and not striving towards it.

出自先秦《荀子·修身》。利益少，但是道义多，这样的事要做。在利与义之间要舍利而取义，强调的是一种修身原则。