I remember writing a paper on the likeness and difference between Buddha's sermon on the mount and Yeshua's sermon on the mount. The likenesses outweigh the difference, despite the wording being different, for a message can be forwarded using different words.
The difference, however, was night and day when closely considered.
Buddha's aim was to work on oneself, looking internally; serving your own needs. The by-product being that others might be impacted by your example, and/or your deeds. Pouring into oneself what one learns. Basically self-centered and self-focused.
Yeshua's message is to serve others, looking externally at the people around you; serving the needs of others. The by-product being that you are internally impacted because one is not focused on oneself, but on others. Pouring out of oneself what one learns. Basically self-less and self-denial.
Focus is key.
Focus determines the process and reveals the truth. Some argue that both 'philosophies' arrive at the same product/goal/destination.
Buddhist philosophy speaks of reincarnation; a recycling of man's spirit.
The message of Christ speaks of each man's responsibility for his soul's destination; a once in a lifetime life experience.
The philosophy may justify class/caste systems, placing hope in another flesh life experience at a 'higher' class/caste.
The message speaks purpose in your current position in this life, placing hope in a fleshless eternal life.
Buddhist philosophy says the notion of 'god' is within, and there is nothing without other than universal consciousness. This seems close to the truth. It is a bit contradictory not acknowledging an entity greater than self while acknowledging a collective consciousness ( which is an entity greater than self).
The message speaks God is in all and through all, God is without for those who are separated. They're spiritually separated due to disobedience to the message: Yeshua is Lord.