Who is rich? He that is content. Who is that? Nobody.
No gains without pains.
You can not pluck roses without fear of thorns, Nor enjoy a fair wife without danger of horns.
Electrical matter differs from common matter in this, that the parts of the latter mutually attract, those of the former mutually repel each other.
Read much, but not too many books.
The only things of certainty are Death and Taxes.