Politeness is only one half good manners and the other half good lying.
There is no pleasure in having nothing to do; the fun is in having lots to do and not doing it.
He who devotes sixteen hours a day to hard study may become as wise at sixty as he thought himself at twenty.
A youth with his first cigar makes himself sick; a youth with his first girl makes everybody sick.
In some parts of Ireland the sleep which knows no waking is always followed by a wake which knows no sleeping.