In the realm of science, we must be prepared to accept that our most cherished theories may one day be superseded.
在科学领域，我们必须准备好接受我们最珍视的理论有一天可能会被取代。
Well may the boldest fear and the wisest tremble when they contemplate the condition of our country.
当他们思考我们国家的状况时，最勇敢的人可能会害怕，最聪明的人可能会颤抖。
If you don't keep creating, you will disappear.
"Courage is not the absence of fear, but the triumph over it."
The only meaningful way to study learning is through objective measurement.
Sustainability isn't an option—it's a necessity for the future of agriculture.