The mind is never right but when it is at peace within itself.
All things are cause for either laughter or weeping.
Voyage, travel, and change of place impart vigor
When once ambition has passed its natural limits, its progress is boundless.
Truth will never be tedious unto him that travelleth in the secrets of nature; there is nothing but falsehood that glutteth us.
The artist finds a greater pleasure in painting than in having completed the picture.