We cannot command Nature except by obeying her.
Everybody has his own interpretation of a painting he sees.
A prudent question is one-half of wisdom.
Studies perfect nature and are perfected still by experience.
It's always hopeless to talk about painting - one never does anything but talk around it.
...neither is it possible to discover the more remote and deeper parts of any science, if you stand but upon the level of the same science, and ascend not to a higher science.