Maybe you are the best of the class. In the last few exams one or two or even several students have got higher marks than you. What do you think about this? Are you jealous of them? Or are you grateful to them? Please think it over after reading the following passage. You will probably learn a lot.

Once there was a zoologist who worked on antelopes which were living on both sides of a river in Africa. He discovered that the antelopes on the east side multiplied more rapidly and ran faster than those on the west.

The zoologist puzzled after long and deep thought about the differences, as the two groups of antelopes lived in the same environment and they fed on the same kind of grass. One year, with the help of the Animal Protecting Society, he caught ten antelopes on each side and exchanged them. A year later, the ten antelopes sent to the west bank multiplied by fourteen while only three remained of the ones sent to the east. Where were the other seven? They had been eaten by wolves.

At last the zoologist understood why the antelopes on the east were stronger. That was because on the east side there were living a group of wolves—their natural enemy!

Not everything is plain sailing in your life. It is your opponents that are improving you indeed. So thanks must go to your opponents, it's true!