The living voice is that which sways the soul.
Honor puts us under an obligation as binding as necessity is for other people.
However often you may have done them a favour, if you once refuse they forget everything except your refusal.
The happier time, the quicker it passes
He [Pliny the Elder] used to say that 'no book [etc] was so bad but some good might be got out of it'.
For however often a man may receive an obligation from you, if you refuse a request, all former favors are effaced by this one denial.