The teacher must believe in the potential of his students.
To make art is to question the limits of the possible.
Don't bend; don't water it down; don't try to make it logical; don't edit your own soul according to the fashion. Rather, follow your most intense obsessions mercilessly.
To be a good mathematician, you need to have both intuition and rigor.
"I always try to stay positive, even when things are not going my way."
Art should disturb the comfortable and comfort the disturbed.