The game of discontent has its rules, and he who disregards them cheats. It is not permitted to you to wish to add another's advantages or possessions to your own; you are permitted only to wish to be another.
People are only influenced in the direction in which they want to go, and influence consists largely in making them conscious of their wishes to proceed in that direction.
We must set limits to our wishes, curb our desires, moderate our anger, always remembering that an individual can attain only an infinitesimal share in anything that is worth having; and that on the other hand, everyone must incur many of the ills of life