充分發(fā)揮人的天性稟賦，發(fā)揮得越多越好：運用天性去窮究物理，極盡智力，通達自然，思惟神妙，造就豁達的胸懷和高潔的品德；盡量壓抑人的情感欲望，遏制到越少越好：管束自己去謹慎說話，持重辦事，約束自身，心地高潔，還要節(jié)衣縮食并減少情欲和嗜好。
"A personality is a full congress of orators and pressure groups, of children, demagogues, communists, isolationists, war mongers, mugwumps, grafters, prayer-makers, adventurers and clerks; with each of these in a minority of one."