Man needs, for his happiness, not only the enjoyment of this... - Bertrand Russell

"Those who have never known the deep intimacy and the intense companionship of mutual love have missed the best thing that life has to give."

"We know very little, and yet it is astonishing that we know so much, and still more astonishing that so little knowledge can give us so much power."

"It is not what the man of science believes that distinguishes him, but how and why he believes it. His beliefs are tentative, not dogmatic; they are based on evidence, not on authority or intuition."

"La Ciencia en ningún momento está totalmente en lo cierto, pero rara vez está completamente equivocada y tiene en general mayores posibilidades de estar en lo cierto que las teorías no científicas."

"The good life is one inspired by love and guided by knowledge."