It's human nature to not say everything that's on your mind at the time you think it. Because we fear saying something that people will laugh at, people will think is dumb. We're afraid of being embarrassed.

It is human nature to instinctively rebel at obscurity or ordinariness.

ô enfance du coeur humain qui ne vieillit jamais! voilà donc à quel degré de puérilité notre superbe raison peut descendre! Et encore est-il vrai que bien des hommes attachent leur destinée à des choses d'aussi peu de valeur que mes feuilles de saule.

Subdue your appetites, my dears, and you've conquered human nature.

Subdue your appetites, my dears, and you've conquered human nature .

Of course, when I say that human nature is gentleness, it is not 100 percent so. Every human being has that nature, but there are many people acting against their nature, being false.