“The man who never alters his opinion is like standing water, and breeds reptiles of the mind.”
“If it takes a million years for a fish to become a reptile, has Man, in our few hundred, altered out of recognition?”
“Man will never understand woman and vice versa. We are oil and water. An equal level can never be maintained, as one will always excel where the other doesn't, and that breeds resentment.”
“An inventor is a man who asks 'Why?' of the universe and lets nothing stand between the answer and his mind.”
“The man who alters his way of thinking to suit others is a fool.”
“Altered opinions do not alter a man’s character (or do so very little); but they do illuminate individual aspects of the constellation of his personality which with a different constellation of opinions had hitherto remained dark and unrecognizable.”