A young man who is unable to commit a folly is already an old man.

In art, all who have done something other than their predecessors have merited the epithet of revolutionary; and it is they alone who are masters.

I am a great artist and I know it, it is because I am that I have been able to endure so much suffering.

Machines have come, art has fled, and I am far from thinking photography can help us.

In art one is concerned with the condition of the spirit for three quarters of the time; one must therefore care for oneself if he wishes to make something great and lasting.

It is the eye of ignorance that assigns a fixed and unchangeable color to every object; beware of this stumbling block.

One's state of mind is three-quarters of what counts, so it has to be carefully nurtured if you want to do something great and lasting.