Happiness Depends Upon Ourselves.

In Poverty And Other Misfortunes Of Life, True Friends Are A Sure Refuge.

Learning Is Not Child's Play; We Cannot Learn Without Pain.

There Are, Then, Three States Of Mind ... Two Vices--that Of Excess, And That Of Defect; And One Virtue--the Mean; And All These Are In A Certain Sense Opposed To One Another; For The Extremes Are Not Only Opposed To The Mean, But Also To One Another; And The Mean Is Opposed To The Extremes.

The Greatest Virtues Are Those Which Are Most Useful To Other Persons.

The Law Does Not Expressly Permit Suicide, And What It Does Not Permit It Forbids.