I was bold in the pursuit of knowledge, never fearing to follow truth and reason to whatever results they led, and bearding every authority which stood in their way."

"The moment a person forms a theory, his imagination sees in every object only the traits that favor that theory."

"Perseverance in object, though not by the most direct way, is often more laudable than perpetual changes, as often as the object shifts light."

"A good cause is often injured more by ill-timed efforts of its friends than by the arguments of its enemies. Persuasion, perseverance and patience are the best advocates on questions depending on the will of others."

It is wonderful how much may be done if we are always doing.