There is nothing in the world more shameful than establishing one's self on lies and fables.

Look closely at those who patronize you. Half are unfeeling, half untaught.

Just begin and the mind grows heated; continue, and the task will be completed!

Profoundness, genius, spontaneity, merit, nobility, ingenuity, voice propriety, feeling, discernment, sensibility, good taste, great tone, rightness, courtliness, vivacity, boldness, style, freshness, harmony, perfection, imagination, purity, correctness. The greatest writer of all times. God's most astonishing creation.

Pity on the person who has become accustomed to seeing in necessity something arbitrary, who ascribes to the arbitrary some sort of reason, and even claims that following that sort of reason has religious value.

The old lose one of the greatest privileges of man, for they are no longer judged by their contemporaries.

I have heard myself accused of being an opponent, an enemy of mathematics, which no one can value more highly than I, for it accomplishes the very thing whose achievement has been denied me.