Whoever, in the pursuit of science, seeks after immediate practical utility may rest assured that he seeks in vain.

Whoever, in the pursuit of science, seeks after immediate practical utility may rest assured that he seeks in vain.

谁在追求科学的过程中，追求直接的实际效用，谁就可以放心，他的追求是徒劳的。

-- Hermann von Helmholtz 亥姆霍兹