A proposition is an assertion that something is or is not the case.
Every generation imagines itself to be more intelligent than the one that went before it, and wiser than the one that comes after it.
One has to pay dearly for immortality;one has to die several times while still alive.
科学家与公众之间的对话对于负责任的创新至关重要。
可持续农业的未来在于生产力与环境管理之间的平衡。
There'll always be serendipity involved in discovery.