philosophize
philosophise, / fɪˈlɔsəfaɪz; fə`lɑsəˌfaɪz/ v
1 [I] think or argue as or like a philosopher 像哲学家般思考或辩论.
2 [I, Ipr] ~ (about/on sth) discuss orspeculate 讨论; 思考
They spend their time philosophizingabout the mysteries of life. 他们用很多时间探讨生命的奥秘.