For it is the bright day that brings forth the adder, and that craves wary walking.

7 seconds sound clip from the Julius Caesar (1953) movie soundboard.

You can hear this line at 00:28:39 in the DVD version of the movie.

Quote context

[...]

- Get me a taper in my study, Lucius. When it is lighted, come and call me here.

- I will, my lord.

- It must be by his death, and, for my part, I know no personal cause to spurn at him but for the general.

- He would be crowned.

- How that might change his nature, there's the question.

- For it is the bright day that brings forth the adder, and that craves wary walking.

- Crown him. That.

- And then, I grant, we put a sting in him, that at his will he may do danger with.

- The abuse of greatness is when it disjoins remorse from power.

- And, to speak truth of Caesar, I have not known when his affections swayed more than his reason.

[...]