finished reading Introduction to Mathematical Sociology 🌕🌕🌕🌕🌕
开创性的作品，1964年Coleman就能想出那么多点子！"Although the complexity of social behavior is overwhelming, the problem which we set ourselves in research and theory are narrow and relatively simple. It is in such a situation that the less rich but more precise language of mathematics becomes a useful and very powerful tool" (pp.2) 他认为数学的力量在于其和社会结构之间的 isomorphism。