科学研究的目的是为了描述世界和解释世界,而描述世界和解释世界的途径便是观察和实验(借助仪器的观察)。科学的本质是实证的,科学活动是一种求真活动,科学必须用事实说话;科学结论必 The purpose of scientific research is to describe the world and to explain the world, and the way to describe and interpret the world is to observe and experiment (with the aid of instrumental observations). The essence of science is positivism, scientific activity is a kind of seeking truth activity, science must use fact to speak, and scientific conclusion