Hobbes didn’t impress everyone. From a letter Descartes wrote to Mersenne on Hobbes.

unless I am very much mistaken, he is aiming to make his reputation at my expense, and by dishonest means (The Correspondence Volume I, 100).

He then commented on De cive, c. 1643:

I think its author is the same person who wrote the third set of objections to my Meditationes. I find him much more clever in moral philosophy [Morale] than in metaphysics or physics, although I cannot approve at all of his principles and maxims, which are very bad and very pernicious, insofar as he supposes that all men are wicked, or gives them reason to be so (cited in II, 826).