The only way to truly understand something is to do it yourself.
It is no use saying, 'We are doing our best.' You have got to succeed in doing what is necessary.
Memory is the only paradise from which we cannot be expelled.
Economic policies should be evaluated based on their real-world impact.
Resilience in agriculture means preparing for the unknown while optimizing for the known.
A good mathematician is someone who can see analogies between theorems. A great mathematician is someone who can see analogies between analogies.
The most durable thing in writing is style, and style is the most valuable investment a writer can make with his time.
The same principles which at first view lead to skepticism， pursued to a certain point， bring men back to common sense.