What is the LBJ quote about knowing what is right?

Factual Questions
1

Something like “You know, doing what is right is easy. The problem is knowing what is right.” But I’ve seen it quoted differently in different sources.

Does anyone have a definitive reference? Is there such a thing on the internet?

2

Here’s one site, and another, plus one more.

3

All three with different version. :stuck_out_tongue:

Anyone got the definitive one?

4

Annual Message to the Congress on the State of the Union January, 1965