the diversity of their nature.

Hobbes [Footnote: _Leviathan_, chapter xv.], deeply concerned to
discover some _modus vivendi_ which should put a check upon strife
between man and his fellow-man, and save us from a life "solitary, poor,
nasty, brutish and short," recommends among other virtues:

Justice
Equity
Requital of benefits
Sociability
A moderate degree of forgiveness
The avoidance of pride and arrogance.

Locke [Footnote: _Essay_, Book IV, chapter iii, Sec. 18; _Of Civil
Government_, Book II, chapter ii.], who believes that moral principles
must be intuitively evident to one who contemplates the nature of God and
the relations of men to Him and to each other, thinks it worth while to
set down such random maxims as:

No government allows absolute liberty.
Where there is no property there is no injustice.
All men are originally equal.
Men ought not to harm one another.
Parents have a right to control their children.

Hume, [Footnote: An Enquiry Concerning the Principles of Morals, Sec 6,
Part I] whose two classes of virtues comprise the qualities immediately
agreeable or useful to ourselves and those immediately agreeable or
useful to others, offers us an extended list. He puts into the first