Can Stoicism be seen as something close to Buddhism in some aspects? I am asking this question, for I try to follow much of Stoicism, and I can see that there are certain similarities. But there are also many differences. Could some aspects be the same or at least alike?

For example, Stoics assert that unhappiness and evil are the results of ignorance. If one is cruel, it is because he is unaware of his own universal reason. If one is unhappy, it is because he "forgot" how his true nature actually operates (these concepts seem to me very similar to the Buddha Nature, which belongs to all living beings, but is often in a latent state).

PS : I am sorry if the tags are wrong, I am new here.
Stoicism can be seen as very similar to Buddhism in that it appeals to an ultimately indefinable reality which, through the denial of ego, awareness of which brings harmony to life.  Also, the stoic acceptance of whatever happens being in accord with nature is like non-attachment.  A Buddhist writer I read recently said that they are in many ways the same other than the Buddhist has greater joy to the extent to which their ego has dissolved.

Stoics permit suicide in a wider range of cases than Buddhists, although the principle that suicide is an option when spiritual practice is no longer possible is the same.