One of the things I learned as president is that your life is just not going to unfold the way you want it to. There will be surprises, challenges, and therefore the question is how you deal with the unexpected.
I've come to embrace the notion that I haven't done enough in my life. I've come to confirm that one's title, even a title like president of the United States, says very little about how well one's life has been led. No matter how much you've done or how successful you've been, there's always more to do, always more to learn, and always more to achieve.
Remember that God ordained that I should be the next president of the United States. Neither you nor any other mortal or mortals could have prevented this.
The President does not have power under the Constitution to unilaterally authorize a military attack in a situation that does not involve stopping an actual or imminent threat to the nation.
I think Donald Trump should cool down a little bit. To pay more attention to the history. To really understand what U.S.'s value is about. I think, as a president, those things you always have to ask.