Honor puts us under an obligation as binding as necessity is for other people.

It is difficult to retain what you may have learned unless you should practice it. -Difficile est tenere quae acceperis nisi exerceas

He [Pliny the Elder] used to say that 'no book [etc] was so bad but some good might be got out of it'.

That indolent but agreeable condition of doing nothing.

Unfinished paintings are more admired than the finished because the artist's actual thoughts are left visible.

Objects which are usually the motives of our travels by land and by sea are often overlooked and neglected if they lie under our eye.

Necessity, that excellent master, hath taught me many things.