His genius he was quite content in one brief sentence to define; Of inspiration one percent, of perspiration, ninety nine.
The value of an idea lies in the using of it.
Show me a thoroughly satisfied man and I will show you a failure.
The best thinking has been done in solitude. The worst has been done in turmoil.
We don't know a millionth of one percent about anything.
To my mind the old masters are not art; their value is in their scarcity.