In what way does Henry remind Victor of his former self in Frankenstein?

In the novel Frankenstein, Victor and
Henry are lifelong friends who appreciate each other very much. Henry basically grew up
in the Frankenstein estate and he was very much treated as a part
of Victor's family.

Victor and Henry separated when
Henry left for Ingolstadt. However, he met Victor again when the latter was suffering
from what is known in the story as "insane fevers", or fits of anxiety that Victor
suffered after creating the creature.

Since Victor and
Henry spent so much of their childhood together, their environment made it possible for
them to develop similar characteristics. Hence, Henry possessed the same great qualities
that made Victor successful, such as the passion for learning, the ambition to reach new
goals, the dedication to his field of work, and the ability to challenge himself. These
characteristics were all part of Victor's own personality prior to the creation of the
monster.

What made Victor and Henry very different was that
Henry did not allow ambition to turn into an obsession, nor did he intend to become
anything but a very well-educated linguist and philosopher. Contrastingly, Victor's
ambition did become an obsession that tainted his soul, his mind, and his heart
altogether. Hence, Henry represents Victor's former self before ambition ruined his life
forever.