阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
I remember the last time I had to choose between optimism and fear, between fight and flight. It was right after 9/11. I had (baby) and I wanted to pack them up and flee to some safer place.
The very act of (have) a child is an optimistic bid on the future. You learn that it's your job to tell these little creatures that everything's going to be OK, all evidence to the contrary. To do that, you have to find your own way toward hope — there's no better insincerity detector than a little kid. So you say to (you): Yes, my kids will be able to make a good life in a (peace) place. Yes, there's still time for the nations of the earth (get) it together; and yes, their history will lean towards justice. Then, for the next 20 years, the world challenges that daring optimism. So time and again you must find it within yourself to choose hope — not for yourself for them. You look for the helpers. Or do your best to be a helper, rather than get (drag) down into despair (绝望).
My kids are big now. Grown, but not yet charge of the world they live in. So we (define) these times together. The two of them will have to discover their own well of optimism.