不要害怕犯错误。如果你没有犯错误，你就没有足够努力。
Don't be afraid to make mistakes. If you're not making mistakes, you're not trying hard enough.
The mind is an instrument of survival before it is an instrument of thought.
比喻天地如同熔炉，造化是工匠，阴阳是炭火，万物是被锻造的铜器。
Every day confirms his belief of the inconsistency of all human characters, and of the little dependence that can be placed on the appearance of merit or sense.
粮食安全始于土壤安全。