Famous quotes include: 1. Survival of the fittest, survival of the fittest. 2. The weak wait for opportunities, while the strong create opportunities. 3. Life is like sailing against the current. If you don’t advance, you will retreat. Example: Norwegians catch sardines. If the fish arrives in Hong Kong alive, the price is much higher than the dead fish. Therefore, the fishermen tried their best to bring the fish to port alive, but all efforts failed. Only one fishing boat could always bring live sardines