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.
So long as I'm the president, we will. I clearly see the challenge. I see the challenge of what these threats pose to our homeland, and I see the challenge of what these threats pose to the world.
If the imagination is to transcend and transform experience it has to question, to challenge, to conceive of alternatives, perhaps to the very life you are living at the moment.
Whenever I look at the history of presidents I deeply admire - the one thing that I'm always struck by is persistence. It's a quality that's underrated. Being able to plough through, being able to stay buoyant in the face of challenges.
Our problem is that we often expect instantaneous solutions to such challenges, forgetting that frequently the heavenly virtue of patience is required.
It is impossible to remain indifferent to Japanese culture. It is a different civilisation where all you have learnt must be forgotten. It is a great intellectual challenge and a gorgeous sensual experience.
Here's a Challenge: Study a complicated topic in such detail that anyone interested can nod their head and understand as you explain specific concepts within the topic.
We'll continue to speak out in a respectful way; never challenging somebody's love for America when you criticize their strategies or their point of view.