A cup is useful only when it is empty; and a mind that is filled with beliefs, with dogmas, with assertions, with quotations is really an uncreative mind.
The business of every art is to bring something into existence, and the practice of an art involves the study of how to bring into existence something which is capable of having such an existence and has its efficient cause in the maker and not in itself.
You must never believe that the enemy does not know how to conduct his own affairs. Indeed, if you want to be deceived less and want to bear less danger, the more the enemy is weak or the less the enemy is cautious, so much more must you esteem him.
The highest exercise of imagination is not to devise what has no existence, but rather to perceive what really exists, though unseen by the outward eye-not creation, but insight.
Nothing, indeed, is more dangerous to the young artist than any
conception of ideal beauty: he is constantly led by it either into
weak prettiness or lifeless abstraction: whereas to touch the
ideal at all you must not strip it of vitality. You must find it in life and re-create it in art.
If you are situated at a great distance from the enemy, and the strength of the two armies is equal, it is not easy to provoke a battle, and fighting will be to your disadvantage.
And yet the artist will go on with his work without knowing in some way if any of his representations are sound or unsound. The artist knows nothing worth mentioning about the subjects he represents, and that art is a form of play, not to be taken seriously.
The peril of every fine faculty is the delight of playing with it for pride. Talent is commonly developed at the expense of character, and the greater it grows, the more is the mischief. Talent is mistaken for genius, a dogma or system for truth, ambition for greatness, ingenuity for poetry, sensuality for art.