David Hume

A propensity to hope and joy is real riches; one to fear and sorrow real poverty. 

A purpose, an intention, a design, strikes everywhere even the careless, the most stupid thinker. 

A wise man proportions his belief to the evidence. 

Accuracy is, in every case, advantageous to beauty, and just reasoning to delicate sentiment. In vain would we exalt the one by depreciating the other. 

And what is the greatest number? Number one. 

Any person seasoned with a just sense of the imperfections of natural reason, will fly to revealed truth with the greatest avidity. 

Avarice, the spur of industry. 

Be a philosopher but, amid all your philosophy be still a man. 

Beauty in things exists in the mind which contemplates them.

Beauty is no quality in things themselves. It exists merely in the mind which contemplates them. 

Beauty, whether moral or natural, is felt, more properly than perceived. 

Belief is nothing but a more vivid, lively, forcible, firm, steady conception of an object, than what the imagination alone is ever able to attain. 

Character is the result of a system of stereotyped principals. 

Custom is the great guide to human life. 

Eloquence, at its highest pitch, leaves little room for reason or reflection, but addresses itself entirely to the desires and affections, captivating the willing hearers, and subduing their understanding.