"All the problems begin to look like nails when the only tool you have is a hammer" (Abraham Maslow). Application of knowledge as an alternative to the theme of "tool" suggests that knowledge gained is not the best if you see how to know as a group rather than alone. The four ways of your own ability knowledge are: reason, language, perception and emotion. In mathematics, natural sciences, and ethics, we judge to what extent the reliability is higher than knowledge of other forms.
Science is the application of formal and informal reasoning methods to understand and predict the natural and artificial world of human life. Science also places great emphasis on being able to observe and measure, but the scientific theory should be productive, comprehensive, simple, and as many as possible. The conclusion does not invalidate scientists and their conclusions, but it means that scientists must apply the same type of method to their own reasoning. It is suitable for research subjects
• To what extent can you understand all natural sciences by studying science such as physics? If biology depends on chemistry and chemistry depends on physics, can all natural sciences return to physics? If so, what is the meaning of this position? • Does scientific knowledge progress? Does scientific knowledge grow constantly? In this respect, how does natural science compare with other knowledge fields such as history, humanities, ethics, art, etc? Is there "an end" in science? In other words, can we gain level knowledge that all scientifically important things are known? If so, what about the results?