统一自然界所有力的挑战是几十年来推动理论物理学发展的动力之一。

田横的五百壮士如今在哪里？难道归来后都能封侯吗？

People are curious. A few people are. They will be driven to find things out, even trivial things. They will put things together, knowing all along that they may be mistaken.

不要浪费危机和灾难。没有问题，就没有进步。