Knowledge cannot be changed, but the use to which it may be put can very easily be changed.

Knowledge cannot be changed, but the use to which it may be put can very easily be changed.

If one has one cow, it is always better not to be too familiar with those who have seven.

Curiosity is the only thing that really carries through time, isn't it? The creative curiosity, I mean, which fights its way into expression?

It is a very dangerous thing to have an idea that you will not practice.

to everything there is an end - except fear.

artists are exposed to great temptations: their eyes see paradise before their souls have reached it, and that is a great danger.