What is science?

The so-called "science" is a branch and learn knowledge system, it is a way of thinking, is a tool for the pursuit of truth, it is not truth itself, it does not mean absolutely right."Science and technology" is a double-edged sword, it can help mankind to know the unknown world, and also plagued the people correctly understanding the objective world.Due to the progress of science and technology limited to the stage of development of productive forces, science instruments has not produced, at one time it can't test people's understanding is correct, the innate consciousness is unlimited, it before, and scientific tools is artificial, after the consciousness, because scientific tools haven't built, will not be able to test people know whether it is right, people often some of the advanced knowledge will be "pseudoscience", "superstitious", and so on, for hundreds of years scientific instruments made out, via examining some understanding is correct, the posterity to rehabilitate, this is how humans came up step by step.So, we don't know don't said to be "pseudoscience", it makes the posterity jokes we knowledge is too narrow and too shallow.