The best scientific discoveries often happen at the interface of different disciplines.
一个好的经济学家必须既是科学家,又是人文主义者。
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.
It may be the cock that crows, but it is the hen that lays the eggs.