对心灵的研究必须严格经验化。
The study of the mind must be strictly empirical.
The only way to deal with the complexity of the world is to simplify it.
There are still many causes worth sacrificing for, so much history yet to be made.
Innovation in mining technology is essential to meet the world's energy demands.
天文学的历史是一部视野不断退却的历史。