最好的肥料是农民在田地上的身影。
The best fertilizer is the farmer's shadow on the field.
The conversation about coal must move beyond 'pro' or 'anti'—we need solutions, not slogans.
Existence is a risk, but non-existence is also a risk.
The only time success comes before work is in the dictionary.
心理学家必须是一个严格的实证主义者。