The dread of evil is a much more forcible principle of human actions than the prospect of good.
John LockeOne unerring mark of the love of truth is not entertaining any proposition with greater assurance than the proofs it is built upon will warrant.
John LockeThe native and untaught suggestions of inquisitive children do often offer things, that may set a considering man's thoughts on work. And I think there is frequently more to be learn'd from the unexpected questions of a child than the discourses of men, who talk in a road, according to the notions they have borrowed, and the prejudices of their education.
John Locke