I write for the unlearned about things in which I am unlearned myself.

If we accept Heaven we shall not be able to retain even the smallest and most intimate souvenirs of Hell.

First, I do not sit down at my desk to put into verse something that is already clear in my mind. If it were clear in my mind, I should have no incentive or need to write about it. We do not write in order to be understood; we write in order to understand.

It is in some ways more troublesome to track and swat an evasive wasp than to shoot, at close range, a wild elephant. But the elephant is more troublesome if you miss.

If you love deeply, you're going to get hurt badly. But it's still worth it.

Above all, do not attempt to use science (I mean, the real sciences) as a defence against Christianity. They will positively encourage him to think about realities he can’t touch and see.

I am a product [...of] endless books.