“And if there is one thing that he and this year’s anniversary should teach us, if there’s one lesson I hope that Malia and Sasha and young people everywhere learn from this day, it’s that with enough effort, and enough empathy, and enough perseverance, and enough courage, people who love their country can change it.”

“Sometimes it's only the young ones who are crazy enough to change the world.”

“This love was big enough for the both of us.
This love of yours was big enough to be frightened of.
It's deep and dark, like the water was,
The day I learned to swim.”

“There is time enough for everything, in the course of the day, if you do but one thing at once; but there is not time enough in the year, if you will do two things at a time.”

“To do the useful thing, to say the courageous thing, to contemplate the beautiful thing: that is enough for one man's life.”

“I recognize there is a certain presumptuousness in this, a certain audacity, to this announcement. I know that I haven't spent a lot of time learning the ways of Washington, but I've been there long enough to know that the ways of Washington must change. People who love their country can change it.”

“Of course there is enough to stir our wonder anywhere; there's enough to love, anywhere, if one is strong enough, if one is diligent enough, if one is perceptive, patient, kind enough -- whatever it takes.”

“They are here among us. Let us be wise enough to learn from those who can teach us much — who will be our friends if we will but let them!”

“People don't like change. But make the change fast enough and you go from one type of normal to another.”

“Empathy is not simply a matter of trying to imagine what others are going through, but having the will to muster enough courage to do something about it. In a way, empathy is predicated upon hope.”