It seems like an increasingly alien concept, picking up a phone without knowing who is on the other end, so as often as not I let the answerphone pick up.
在完全不知道对方是谁的情况下拿起话筒，越来越像是外星人的做法。
We're learning all the time, often without even knowing it, but when it comes to achieving focused learning goals, our minds appreciate regularity and rhythm.
我们一直在学习，却经常意识不到它。可是，当涉及完成既定学习目标时，我们的大脑就呈现出规律性和节奏感。
And, if you look back through your life, you will often find that you've broken through some of the blocks that have troubled you in the past, without even knowing it.
而且，如果你回首遍历你的人生，你将经常发现甚至都没意识到的情况下你突破了那些在过去给你带来麻烦的一些障碍。
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