How difficult it is to be simple.
The writer ... an athlete required to break the four-minute mile every morning.
I do not know a better cure for mental illness than a book.
The most perfect guide is nature. Continue without fail to draw something every day.
The brooding is better than the joy because even if the heart fills with happiness, it still mourns.
Someday my paintings will be hanging in the Louvre. [Vincent Van Gogh]