The Buddha

Buddha - enlightened human → understands the true nature of life and is free from suffering, embodying compassion and wisdom in all actions → they believe that everyone has a Buddhist nature, a potential to reach enlightenment - the aim of Buddhism

if anyone can be a Buddha, there would of been Buddhas in the past, meaning there will be Buddhas in the future

Theravada Buddhists reverse the term for Siddharta Gautama, referring to him as the "Buddha" to signify his ultimate achievement of enlightenment and his role as a teacher, while Mahayana Buddhists often attribute a more universal nature to the concept of Buddha, seeing it as accessible to all beings. - They aim to learn over lifetimes to become a perfect human - Arahant.

The arahant →

“those monks who are arahants have flaws destroyed, have lived the holy life, done what had to be dome, laid down the burden, reached their own goal, destroyed the fetters of being, and are completely liberated through final knowledge” - Alagaddupama Sutta

The Buddhist nature

“all times I think to myself: how can I cause living beings to gain entry into the unsurpassed way, and quickly acquire the body of a Buddha?” - Lotus Sutra