“When you can measure what you are speaking about, and express it in numbers, you know something about it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind; it may be the beginning of knowledge, but you have scarely, in your thoughts advanced to the stage of science.”

“The steam engine has done much more for science than science has done for the steam engine.”

“Oersted would never have made his great discovery of the action of galvanic currents on magnets had he stopped in his researches to consider in what manner they could possibly be turned to practical account; and so we would not now be able to boast of the wonders done by the electric telegraphs. Indeed, no great law in Natural Philosophy has ever been discovered for its practical implications, but the instances are innumerable of investigations apparently quite useless in this narrow sense of the word which have led to the most valuable results.”

“Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.”

“You can think all you can but don't publicize all your thoughts”

“You may or may not make a million dollars in life, a song may not be sung in praise of you, monuments may not be erected in your name but promise me this: to live life fully, to give wholeheartedly, to do your best with what you have, to impact souls, to use your gifts and talents to serve humanity, to live, love and leave a legacy in your own way.”

“I am experiencing a measure of excitement combined with increasing pleasure, which is perhaps manifesting as an expression of amusement."It was the first time he had ever used the scales to describe his emotions. "I love it when you talk dirty," I whispered ...”