“Well-timed silence hath more eloquence than speech.”

“A good book is the best of friends, the same today and forever.”

“God, from a beautiful necessity, is Love.”

“If thou art master to thyself, circumstances shall harm thee little.”

“A babe in the house is a well-spring of pleasure, a messenger of peace and love, a resting place for innocence on earth, a link between angels and men.”

“Error is a hardy plant; it flourisheth in every soil; In the heart of the wise and good, alike with the wicked and foolish; For there is no error so crooked, but it hath in it some lines of truth; ...”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”