Nothing is more terrible than activity without insight.
The barrenest of all mortals is the sentimentalist.
The actual well seen is ideal.
A man's felicity consists not in the outward and visible blessing of fortune, but in the inward and unseen perfections and riches of the mind.
Our grand business undoubtedly is, not to see what lies dimly at a distance, but to do what lies clearly at hand.
Of all the paths a man could strike into, there is, at any given moment, a best path .. A thing which, here and now, it were of all things wisest for him to do .. To find this path, and walk in it, is the one thing needful for him.