求翻译：或许，如果人们对爱情有这种乐观自信的态度，那么许多爱情的悲剧就不会发生了。另外，人要学会明辨是非，不要让幸福从自己的指间溜走。是什么意思？

Perhaps if people love the attitude of such optimistic self-confidence, so many love, tragedy would not have happened. In addition, people must learn to distinguish right from wrong, do not let being away from his fingers.

Perhaps, if it is to love about self-confidence of this optimistic attitude, then the many love tragedy would not have happened. In addition, people distinguish between right and wrong, we must learn how not to let their fingers slipped away from happiness.

Perhaps, if the people have this optimistic self-confident manner to love, then many love tragedies could not occur.Moreover, the human wants to learn to make a clear distinction between right and wrong, do not have to let from own refer happily sneaks off.

Perhaps, if people's attitude to love this optimistic confidence, many love tragedy will never happen. In addition, people must learn to distinguish between right and don't let happiness from their fingers slip away.

Perhaps, if people's attitude to love this optimistic confidence, many love tragedy will never happen. In addition, people must learn to distinguish between right and don't let happiness from their fingers slip away.