Look at a day when you are supremely satisfied at the end. It's not a day when you lounge around doing nothing; it's a day you've had everything to do and you've done it.

每个数学问题都有一个解决方案；有时只是需要时间去找到它。

译文：和知心的朋友喝酒，一千杯都嫌少，与不投机的人说话，半句话都不想说。赏析：在人际交往中，知己难寻，我们要珍惜身边那些人品好的知心朋友。