Alfred North Whitehead

Fools act on imagination without knowledge, pedants act on knowledge without imagination.

Intelligence is quickness to apprehend as distinct form ability, which is capacity to act wisely on the thing apprehended.

Ideas won't keep; something must be done about them.

It is hardly surprising that women concentrate on the way they look instead of what is in their minds since not much has been put in their minds to begin with.

Another thing that freaks me out is time. Time is like a book. You have a beginning, a middle and an end. It's just a cycle.

Both Brutus and Hamlet are highly intellectual by nature and reflective by habit. Both may even be called, in a popular sense, philosophic; Brutus may be called so in a stricter sense.