Shakespear, to be or not to be, acted

Context: In passage Brutus is thinking of how Ceasar may make an impact in the Roman Government and what might happen to himself. He sees Ceasar as a dangerous serpent. Brutus must kill him inside his shell, if he doesn't it will grow out of it's shell and be very lethal. Also he says how Ceasar has used other people to climb up the ladder of power, and once he is on top he turns his back on the other people who helped him get there,

Significance: The significance of this passage is that brutus is thinking all these things. Brutus use to be loyal and trustworthy to Ceasar, but now he is seeing Ceasar not as a friend but as a serpent. A deadly creature who's nature is to kill and conquer. Therefore leading Brutus and the other conspirators to kill Ceasar before he is crowned.

Passage taken from Act 2 scene 1 line 10-34

Passage:
Brutus: It must be by his death; and for my part,
I know no personal cause to spurn him,
But for the general. He would be crown'd:
How that might change his nature, there's the question.
It is the bright day that brings forth the adder,
And that carves wary walking. Crown him?-that?
And then, I grant, we put a sting in him,
That at his will he may do danger with.
Th'abuse of greatness is when it disjoins
Remorse from power; and, to speak truth of Ceasar,
I have not known when his affections swa'd
More than his reason. But 'tis a common proof,
That lowliness is young ambition's ladder,
Whereto the climber upward turns his face;
But when he once attains the upmost round,
He then unto the ladder turns his back,
Looks in the clouds, scorning the base degrees.
By which he did ascend. So Ceasar may;
Then lest he may, prevent. And since quarrel
Will bear no colour for the thing he is,
Fashion it thus: that what he is, augmented,
And therefore think him as a serpent's egg,
Which hatch'd would, as his kin, grow mischievous,
And kill him in the shell.