I don't believe in making pencil sketches and then painting landscape in your studio. You must be right under the sky.

You must try to match your colors as nearly as you can to those you see before you, and you must study the effects of light and shade on nature's own hues and tints.

All gardening is landscape painting.

Association with my pupils has kept me young in my work. Criticism of their work has kept my own point of view clear.

You can lead a horse to water, but a pencil must be led.

I always start a painting with the sky.