All complex behavior can be reduced to simpler stimulus-response units.
一本书是世界的一个版本。如果你不喜欢它，忽略它；或者提供你自己的版本作为回报。
The stock market is driven by human emotions, not by economic fundamentals.
The only constant in agriculture is change—embrace it.
Innovation is not just about creating new products; it's about rethinking how we solve old problems.