The errors of young men are the ruin of business, but the errors of aged men amount to this, that more might have been done, or sooner.
Hurl your calumnies boldly; something is sure to stick.
The man who fears no truths has nothing to fear from lies.
There is nothing more certain in nature than that it is impossible for any body to be utterly annihilated.
You could say that I have no inspiration, that I only need to paint.
I hold every man a debtor to his profession.