How does caesar’s description of himself support or conflict with his past behaviors with other characters?

caesar:
i could be well moved if i were as you.
if i could pray to move, prayers would move me.
but i am constant as a northern star,
of whose true fixed and resting quality
there is no fellow in the firmament . .
so in the world: ‘tis furnished well with men,
and men are flesh and blood, and apprehensive;
yet in the number i do know but one
that unassailable holds on his rank,
unshaked of motion; and that i am he . .