"I am sure my fellow-scientists will agree with me if I say that whatever we were able to achieve in our later years had its origin in the experiences of our youth and in the hopes and wishes which were formed before and during our time as students."

"Thanking you once more, I want to wish you the best of luck for your future life and to conclude by saying to you: Dream your dreams and may they come true!"

"My view is that good community management is like having good municipal government: You should be able to have dissenting opinions and so on, freedom of speech, but your grandmother should also be able to walk down the street at night without having to worry about getting mugged."

"The advancement and diffusion of knowledge is the only guardian of true liberty."

"The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants."

"What does it mean to be an American? While each of us may have our own specific answer to that question, we likely can agree on the basic principles of America: freedom, equal opportunity, and rights accompanied by responsibilities."