The greatest part of mankind ... are given up to labor, and enslaved to the necessity of their mean condition; whose lives are worn out only in the provisions for living.
John LockeWhere danger shews it self, apprehension cannot, without stupidity, be wanting; where danger is, sense of danger should be; and so much fear as should keep us awake, and excite our attention, industry, and vigour; but not to disturb the calm use of our reason, nor hinder the execution of what that dictates.
John Locke