To understand the works of ...

To understand the works of celebrated authors, to comprehend their systems, and retain their reasonings, is a task more than equal to common intellects; and he is by no means to be accounted useless or idle, who has stored his mind with acquired knowledge, and can detail it occasionally to others who have less leisure or weaker abilities.
To understand the works of celebrated authors, to comprehend their systems, and retain their reasonings, is a task more than equal to common intellects; and he is by no means to be accounted useless or idle, who has stored his mind with acquired knowledge, and can detail it occasionally to others who have less leisure or weaker abilities.

Quotes from the same author

If a man does not make new acquaintances as he advances through life, he will soon find himself left alone. A man, sir, should keep his friendship in a constant repair.
To keep your secret is wisdom; but to expect others to keep it is folly.
Love is the wisdom of the fool and the folly of the wise.
Memory is the mother of all wisdom.
Friendship, like love, is destroyed by long absence, though it may be increased by short intermissions.