Now, truth is not always a pleasant thing.

3 seconds sound clip from the Dr. Strangelove movie soundboard.

You can hear this line at 00:33:54 in the Blu-ray version of the movie.

Quote context

[...]

- We would, therefore, prevail and suffer only modest and acceptable civilian casualties from their remaining force, which would be badly damaged and uncoordinated.

- General, it is the avowed policy of our country never to strike first with nuclear weapons.

- Well, Mr. President, I would say that General Ripper has already invalidated that policy.

- That was not an act of national policy and there are still alternatives left open to us.

- Mr. President, we are rapidly approaching a moment of truth, both for ourselves as human beings and for the life of our nation.

- Now, truth is not always a pleasant thing.

- But it is necessary now to make a choice, to choose between two admittedly regrettable, but nevertheless distinguishable postwar environments.

- One, where you got 20 million people killed and the other where you got 150 million people killed.

- You're talking about mass murder, General, not war.

- Mr. President, I'm not saying we wouldn't get our hair mussed.

[...]