A fool's courage. Fight death all your days then die, knowing you know nothing.

— Dr. Drossos (Ernst Deutsch)

9 seconds sound clip from the Isle of the Dead (1945) movie soundboard.

You can hear this line at 00:33:31.603 in the Blu-ray version of the movie.

Quote context

[...]

- There is nothing you can do here. Get out. I have no patience with martyrs.

- How long can one live with catalepsy, Doctor?

- An opiate. At least you need not suffer.

- I have watched so many times. I will watch this time, too.

- You should be spared. Your knowledge, your courage...

- A fool's courage. Fight death all your days then die, knowing you know nothing.

- That's the last of our friend.

- Where are you going?

- Never mind that. It does no good. It will serve our purpose a great deal more if we were to join in prayer.

- To Hermes?

- I've been mocking prayer, making a joke of it out there in the ruins. I said that I believed in nothing.

[...]