The day will come when the paper tigers will be wiped out. But they won't become extinct of their own accord, they need to be battered by the wind and the rain.
When we say... imperialism is a paper tiger, we are speaking in terms of strategy. Regarding it as a whole, we must despise it. But regarding each part, we must take it seriously. It has claws and fangs. We have to destroy it piecemeal. For instance, if it has ten fangs, knock off one the first time, and there will be nine left, knock off another, and there will be eight left. When all the fangs are gone, it will still have claws. If we deal with it step by step and in earnest, we will certainly succeed in the end.
Strategically, we must utterly despise... imperialism. Tactically, we must take it seriously. In struggling against it, we must take each battle, each encounter, seriously.... when looked at in a broader perspective, as a whole and from a long-term viewpoint, it has no popular support, its policies are disliked by the people, because it oppresses and exploits them. For this reason, the tiger is doomed. Therefore, it is nothing to be afraid of and can be despised.
— Mao