"If I find 10,000 ways something won't work, I haven't failed. I am not discouraged, because every wrong attempt discarded is another step forward."

"The doctor of the future will give no medicine, but will educate his patients in the care of the human frame, in diet, and in the cause and prevention of disease."

"If we all did the things we are capable of doing, we would literally astound ourselves."

"Many of life's failures are those who didn't know how close they were to success when they gave up."

"To invent, you need a good imagination and a pile of junk."

"Just because something doesn't do what you planned it to do doesn't mean it's useless."

"Few things are harder to put up with than the annoyance of a good example."

"There is no duty we so much underrate as the duty of being happy."

"All changes, even the most longed for, have their melancholy; for what we leave behind us is a part of ourselves; we must die to one life before we can enter another."

"I believe that God has planted in every human heart the desire to live in freedom. And even when that desire is crushed by tyranny for decades, it will rise again."

"The proof of a poet is that his country absorbs him as affectionately as he has absorbed it."

"There is an applause superior to that of the multitudes: one's own."