矿工的安全永远不应该用成本效益分析来衡量。
The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.
Wheat breeding should not only aim for high yield but also disease and stress resistance.
"Cinema has the power to change the way we see the world."