We are forever responsible for what we have tamed.

The only real failure in life is not to be true to the best one knows.

The degree of slowness is directly proportional to the intensity of memory. The degree of speed is directly proportional to the intensity of forgetting.

"Facts are not truth, though they are part of it."

The art of teaching consists in large part of the ability to awaken the natural curiosity of young minds and to satisfy it with the nourishment of knowledge.

Never be satisfied with current achievements, always aim higher.

Every building should be a teacher. It should teach us about light, about air, about how to live together.