“Life is complex in its expression, involving more than percipience, namely desire, emotion, will, and feeling.”

“It is in literature that the concrete outlook of humanity receives its expression.”

“...the only simplicity to be trusted is the simplicity to be found on the far side of complexity.”

“The aim of science is to seek the simplest explanations of complex facts. We are apt to fall into the error of thinking that the facts are simple because simplicity is the goal of our quest. The guiding motto in the life of every natural philosopher should be, 'Seek simplicity and distrust it.”

“Nobody has a right to speak more clearly than he thinks.”

“For successful education there must always be a certain freshness in the knowledge dealt with. It must be either new in itself or invested with some novelty of application to the new world of new times. Knowledge does not keep any better than fish. You may be dealing with knowledge of the old species, with some old truth; but somehow it must come to the students, as it were, just drawn out of the sea and with the freshness of its immediate importance.”

“A science that hesitates to forget its founders is lost.”