[Not enough is known about solid geometry] and for two reasons: in the first place, no government places value on it; this leads to a lack of energy in the pursuit of it, and it is difficult. In the second place, students cannot learn it unless they have a teacher. But then a teacher can hardly be found.

Love is a severe mental disorder.

Man is the plumeless genus of bipeds, birds are the plumed.

Lack of activity destroys the good condition of every human being

Better a good enemy than a bad friend.

Those having torches will pass them on to others.

Enjoy life. There's plenty of time to be dead. Be kind, for everyone you meet is fighting a harder battle.