"This above all,--to thine own self be true;
And it must follow, as the night the day,
Thou canst not then be false to any man."
"Look thou character. Give thy thoughts no tongue,
Nor any unproportion'd thought his act.
Be thou familiar, but by no means vulgar."
"Neither a borrower nor a lender be:
For loan oft loses both itself and friend;"
"Give every man thine ear, but few thy voice:
Take each man's censure, but reserve thy judgment."