亲爱的教师們: 世界是什么?唯物主义和唯心主义对这个問题有完全相反的看法,并始終進行着激烈的斗爭。唯物主义認为:世界的本質是物質,世界上除了物質以外,再沒有什么别的东西。虽然說思想——这种在思維过程中出現的現象并非就是物質,但是思想也正是物質在人的脑子中的反映,而人的腦子只是具有思維机能的特殊的物質。 Dear teachers: What is the world? Materialism and idealism have completely opposite views on this issue, and they are always engaged in fierce struggles. Materialism believes that the essence of the world is matter, and there is nothing else in the world besides matter. Although the idea that this phenomenon occurs in the thinking process is not material, but the idea is also the reflection of matter in the human brain, and the human brain is only a special material with thinking function.