"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."
"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."
"To fear love is to fear life, and those who fear life are already three parts dead."
"To fear love is to fear life, and those who fear life are already 3-parts dead."
"And if there were a God, I think it very unlikely that He would have such an uneasy vanity as to be offended by those who doubt His existence"
"Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric."