When taking a selfie, remember the most natural pose is still best

There are many occasions when the muscles that form the lips of the mouth move the lateral muscles that are joined to them, and there are an equal number of occasions when these lateral muscles move the lips of this mouth, replacing it where it cannot return of itself, because the function of muscle is to pull and not to push except in the case of the genitals and the tongue.

Every obstacle is destroyed through rigor.

Make yourself a master of perspective, then acquire perfect knowledge of the proportions of men and other animals.

You must grow in patience when you meet with great wrongs, and they will then be powerless to vex your mind.

Mechanics is the paradise of the mathematical sciences because by means of it one comes to the fruits of mathematics.

Supreme happiness will be the greatest cause of misery, and the perfection of wisdom the occassion of folly.