Science is simply a powerful way of understanding what's real and what isn't, what's true and what's not. It can help us determine what works, what doesn't, for whom, and under what circumstances.

Preventing cardiovascular disease can help free up critical resources for treating HIV/AIDS and other illnesses.

When the U.S. claims the right to invade any country unilaterally and then defines a country like Iran or North Korea as 'evil,' then it is a rational response for these countries to develop nuclear weapons as the only military deterrent to invasion. We create what we most fear.

Too much power in any institution tends to stifle innovation.

If you go to the Air and Space Museum in Washington, you can see the burn patterns on Friendship 7.

Mothers are so awesome. They do so much. They wear so many hats and have very passionate relationships with their kids, and with life, and I think it's a real balance having your own existence and then being this responsible, kind of loving person in someone else's life or several other people's lives.

I criticized Nawaz Sharif's personal friendship with Modi, but my point has been that there should be good and friendly ties between India and Pakistan at state level. But friendship between these two leaders hasn't turned into a friendly relationship between the two states.

When you meet a lot of people and you date somebody, or you're just in a relationship with friends, lovers, business, or whatever it may be, there are people that are just toxic to you, and you don't even know it yourself.