The price of greatness is responsibility. 

As far as I'm concerned, I prefer silent vice to ostentatious virtue. 

Every time you give, you hope you'll see something new - some new species. Sometimes the ocean gives you a gift, sometimes it doesn't.

It always seems impossible until it's done.

Science without religion is lame, religion without science is blind.

There is no grievance that is a fit object of redress by mob law.

What is politics? Political system is equal to development politics plus political politics.

I always like to look on the optimistic side of life, but I am realistic enough to know that life is a complex matter.

If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.

Those who say religion has nothing to do with politics do not know what religion is.

Medical costs are of concern, both in developing and developed countries.

Don't make friends who are comfortable to be with. Make friends who will force you to lever yourself up.