健康的大脑会有效的剔除和摒弃无价值的或无意义的数据，好让我们能够记住最重要的。
A fit brain will efficiently screen out and discard worthless or meaningless data so it can remember what's important.
如果你只对实现自己的特殊才能感兴趣，而置更大的人生问题和存在的最终目的于不顾，那么你的才能就毫无意义，毫无价值。
If you are only interested in fulfilling your particular capacity, disregarding the wider issues of life and the ultimate end of existence, then your talent is meaningless and worthless.
肯定性的意义就是正价值，否定性的意义就是负价值，无意义就是非价值或无价值。
Positive meaning is positive value; Negative meaning is negative value; Meaningless is worthless or non-value.
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