All this marked them as vaguely liberal, although their ideas would never congeal into anything like a firm ideology; in this, too, they were America… - Barack Obama

To begin with, Congress should act to make sure no one on a no-fly list is able to buy a gun. What could possibly be the argument for allowing a terrorist suspect to buy a semi-automatic weapon? This is a matter of national security. We also need to make it harder for people to buy powerful assault weapons like the ones that were used in San Bernardino. I know there are some who reject any gun safety measures. But the fact is that our intelligence and law enforcement agencies — no matter how effective they are — cannot identify every would-be mass shooter, whether that individual is motivated by ISIL or some other hateful ideology. What we can do — and must do — is make it harder for them to kill.

The forces of division have begun to raise their ugly head again … It reminds me: We've got a tragic history when it comes to race in this country. A lot of pent-up anger and mistrust and bitterness. This country wants to move beyond these kinds of things.

Mandela taught us the power of action, but he also taught us the power of ideas; the importance of reason and arguments; the need to study not only those who you agree with, but also those who you don’t agree with. He understood that ideas cannot be contained by prison walls, or extinguished by a sniper’s bullet. He turned his trial into an indictment of apartheid because of his eloquence and his passion, but also because of his training as an advocate. He used decades in prison to sharpen his arguments, but also to spread his thirst for knowledge to others in the movement. And he learned the language and the customs of his oppressor so that one day he might better convey to them how their own freedom depend upon his.