It's a bit abstract but he's very into each person believing his or her own thought, believing in yourself, the thought or conviction that's true for you.
这有点抽象，但他很喜欢每个人都相信自己的想法，相信自己，相信对你来说是正确的想法或信念。
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On their own, taking our own bags to the grocery store or quitting plastic straws, for example, will accomplish little and require very little of us.