Never, ever give up.

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.

多元宇宙的概念是膨胀的自然结果，表明我们的宇宙可能只是众多宇宙中的一个。