John Tyndall

“Action is the product of the qualities inherent in the organism, and the stimuli acting upon it.”

“I choose the mountain for my own, and find it a fit companion for my thoughts.”

“Life is a wave, which in no two consecutive moments of its existence is composed of the same particles.”

“We are truly heirs of all the ages; but as honest men it is our duty to learn and discover what our inheritance is.”

“The mind of man is the instrument of his happiness or misery.”

“The brightest flashes in the world of thought are incomplete until they have been proved to have their counterparts in the world of fact.”

“The world will have to choose between the path of international co-operation and the path of international anarchy.”

“The man of science who is not a man of feeling is a man of naught.”

“The 'things of the spirit' are just as real as the things of the body.”

“The finest spirits have been infused into my thoughts, my music, and my prayers from the rural haunts of my childhood.”

“We have, I think, in this gossamer observation, a symbol of the disciplined imagination of the true man of science.”