To convince people to back your idea, you've got to sell it to yourself and know when it's the moment. Sometimes that means waiting. It's like surfing. You don't create energy, you just harvest energy

It is a fine game to play - the game of politics - and it is well worth waiting for a good hand before really plunging. 

Beware of rumours. They are more viral than anything that the internet is capable of spreading in this world.

Drones are just another weapon, and they turn out to be a very effective weapon that put on American troops at risk, and I don't see why we shouldn't use them against identified enemy targets.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young. 

Beauty is truth's smile when she holds her own face in a perfect mirror. 

In the end, that's what this election is about. Do we participate in a politics of cynicism in a politics of hope?

The ambition of the greatest men of our generation has been to wipe every tear from every eye. That may be beyond us, but so long as there are tears and suffering, so long our work will not be over.

Once we accept our limits, we go beyond them.

There is a sufficiency in the world for man's need but not for man's greed.

I learned that courage was not the absence of fear, but the triumph over it. The brave man is not he who does not feel afraid, but he who conquers that fear.

Bad news isn't wine. It doesn't improve with age.