科学何以必定有"必然"效用?

科学未必是真理，事实上却必定有“必然”效用。何以如此?对这一问题的解答，有赖于探明科学的本性，有助于深刻地认识科学。从科学的对象、目标、方法和结果看，科学具有经验和超验双重性格，且其超验始终以经验为基础并受着经验的严格约束；而作为科学成果的科学定律等的获取、运用及其效果的确定，都是在同一经验现实中进行的。科学的这种“基于经验而超越经验”的品性，或者说科学的“经验超验”的实质，正是未必是真理的科学必定有“必然”效用的根据和保证。

What Makes Science Certainly Have "Certain" Effectiveness?

Science is not necessarily truth, but certainly has "certain" effectiveness in reality. Why?The solution to this problem depends on ascertaining the character of science and is conducive to understanding science deeply. Judging from its object, objective, method and result, science has a double character: experiential and transcendent, and the transcendence is based on and strictly bounded by experience throughout, and we discover, apply scientific laws and determine the utilizing effects of scientific laws in the same experiential reality. These show that science "is based on and goes beyond experience". It is such a character, or the "experiential transcendence" essence of science, that are the foundation and guarantee of what makes science certainly have "certain" effectiveness.