A lecture has been well described as the process whereby the notes of the teacher become the notes of the student without passing through the mind of either.

Not to engage in this pursuit of ideas is to live like ants instead of like men.

The telephone book is full of facts, but it doesn't contain a single idea.

In English we must use adjectives to distinguish the different kinds of love for which the ancients had distinct names.

Imaginative literature primarily pleases rather than teaches. It is much easier to be pleased than taught, but much harder to know why one is pleased. Beauty is harder to analyze than truth.

The ability to retain a child's view of the world with at the same time a mature understanding of what it means to retain it, is extremely rare - and a person who has these qualities is likely to be able to contribute something really important to our thinking.

Angels are able to know and understand better than the human intellect can, precisely because such knowledge and understanding comes to them by way of ideas infused in them by God.