The greatest human virtue ...

The greatest human virtue bears no proportion to human vanity. We always think ourselves better than we are, and are generally desirous that others should think us still better than we think ourselves. To praise us for actions or dispositions which deserve praise is not to confer a benefit, but to pay a tribute. We have always pretensions to fame which, in our own hearts, we know to be disputable, and which we are desirous to strengthen by a new suffrage; we have always hopes which we suspect to be fallacious, and of which we eagerly snatch at every confirmation.
The greatest human virtue bears no proportion to human vanity. We always think ourselves better than we are, and are generally desirous that others should think us still better than we think ourselves. To praise us for actions or dispositions which deserve praise is not to confer a benefit, but to pay a tribute. We have always pretensions to fame which, in our own hearts, we know to be disputable, and which we are desirous to strengthen by a new suffrage; we have always hopes which we suspect to be fallacious, and of which we eagerly snatch at every confirmation.

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.