We are always looking into the future, but we see only the past.

I study much, and the more I study, the oftener I go back to those first principles which are so simple that childhood itself can lisp them.

Years do not make sages; they only make old men.

Old age is the night of life, as night is the old age of the day. Still, night is full of magnificence; and, for many, it is more brilliant than the day.

Let us resist the opinion of the world fearlessly, provided only that our self-respect grows in proportion to our indifference.

It would seem that by our sorrows only are we called to a knowledge of the Infinite. Are we happy? The limits of life constrain us on all sides.

A friendship will be young after the lapse of half a century; a passion is old at the end of three months.