If we spoke a different language, we would perceive a somewhat different world.

Life is infinitely stranger than anything which the mind of man could invent.

In science, we stand on the shoulders of giants, but it is our responsibility to reach even higher.

The nervous system is a dynamic, ever-changing system.

The truth is not always beautiful, but the pursuit of truth is always noble.

"Language is the house of being. In its home man dwells."

估计问题的性质不同。在这里，我们不关心检验特定的假设，而是关心估计参数的值。