The theory is the practice foundation, and theory penetration during entire practice.The theory is the people summarizes from the practice about the nature and the social knowledge system summary, also in turn instruction practice.The theory is the rich knowledge.In market economy high speed development today, each people all must grasp the rich scientific knowledge, can adapt the competition intense society.Nobel mainly tutor's education, latter arrives since childhood French and the American study theory knowledge.After returns to Russia, he the theory which learns him uses in chemistry research, he finally developed successfully the blasting explosive.Does not have the theory to make the condition, lacks the theory the instruction, all practices all is blind, even is defeated.Why this each big university has the theory class first, then supposes the practice class the reason.Because we stand in many seniors and on giant's shoulders, they proposed that many classics theory, makes the instruction for us, lets us study. Only then the better study theory knowledge, can better instruct own practice, achieves own goal, completes own life to be ideal.