"It is this union of passionate interest in the detailed facts with equal devotion to abstract generalisation which fo…"

"In its solitariness the spirit asks, What, in the way of value, is the attainment of life? And it can find no such va…"

"It is a profoundly erroneous truism, repeated by all copy-books and by eminent people when they are making speeches, …"

"If science is not to degenerate into a medley of ad hoc hypotheses, it must become philosophical and must enter upon …"

"The study of mathematics is apt to commence in disappointment... We are told that by its aid the stars are weighed an…"

"By relieving the brain of all unnecessary work, a good notation sets it free to concentrate on more advanced problems…"

"The aim of science is to seek the simplest explanations of complex facts. We are apt to fall into the error of thinki…"

"It is a safe rule to apply that, when a mathematical or philosophical author writes with a misty profundity, he is ta…"

"Einstein analyses the ideas of time-order and of simultaneity. Primarily (according to his analysis) time-order only …"

"Life is complex in its expression, involving more than percipience, namely desire, emotion, will, and feeling. ... id…"