A large sale is one thing to look at, but not the right thing.

Twenty-seven copies of a book, when read by twenty-seven men of intelligence, outweigh a popular success.

Would you believe that one of my friends had no more than eight copies printed of a mathematical treatise?
Three of these he has given away.

The other five are still unsold.

And that man, sir, is the first mathematician in France!" Mademoiselle Jeanne had taken it differently.