科学家是务实的人，他们的目标是实际的。他们不追求终极，而是追求接近。
The pursuit of mathematical knowledge is a never-ending adventure.
The best quarries leave not just holes in the ground, but value in communities.
The most realistic distinction between the investor and the speculator is found in their attitude toward stock-market movements.
The ladder of success is best climbed by stepping on the rungs of opportunity.
成功的真正标准不在于收获，而在于我们留下的遗产。