Axioms are delightful in theory, but impossible in practice.
The mischief of children is seldom actuated by malice; that of grown-up people always is.
There are men who gain from their wealth only the fear of losing it.
Ideas are a capital that bears interest only in the hands of talent.
Opinions, theories, and systems pass by turns over the grindstone of time, which at first gives them brilliancy and sharpness, but finally wears them out.
Poverty treads close upon the heels of great and unexpected wealth.