We are part of a great whole. All living things are our brothers and sisters.

Over and above the political, economic, sociological, and international implications of racial prejudices, their major significance is that they place unnecessary burdens upon human beings.

In time of war all countries behave equally badly, because the power of action is handed over to stupid and obstinate men.

Ruskin's much-derided moral theory of art was part of an attempt to show that this human activity, which we value so highly, engaged the whole of human personality. His insistence on the sanctity of nature was part of an attempt to develop Goethe's intuition that form cannot be put together in the mind by an additive process, but is to be deduced from the laws of growth in living organisms, and their resistance to the elements.

It is often said that Leonardo drew so well because he knew about things; it is truer to say that he knew about things because he drew so well.

Only the bad artists of the nineteenth century were frightened by the invention of photography; the good ones all welcomed it and used it.

This became Delacroix 's theme: that the achievements of the spirit all that a great library contained were the result of a state of society so delicately balanced that at the least touch they would be crushed beneath an avalanche of pent-up animal forces.