One final point: I'm optimistic, because I believe we have the capacity, at moments of great challenge, to set aside the causes of distraction and rise to the challenge that history is presenting to us.
最后一点。我很乐观，因为我相信 在面临重大挑战时，我们有能力 排除其他因素的干扰并应对 历史给我们带来的危机。