The essential passions of the heart have found a better soil in which it may attain it's maturity; remain under less restraint and extended into it's… - David Hume

The science of man is the only solid foundation for the other sciences. [All the other sciences] have a relation, greater or lesser, to human nature. ‘Tis impossible to tell what changes and improvements we might make in these sciences were we thoroughly acquainted with the extent and force of human understanding, and could explain the nature of the ideas we employ, and of the operations we perform in our reason.

To begin with clear and self-evident principles, to advance by timorous and sure steps, to review frequently our conclusions, and examine accurately all their consequences; though by these means we shall make both a slow and a short progress in our systems; are the only methods, by which we can ever hope to reach truth, and attain a proper stability and certainty in our determinations.

No man ever threw away life while it was worth keeping.