You should do things that are right because they are the right thing to do, not because you many recieve reward or avoid punishment.

The probability that we may fail in the struggle ought not to deter us
from the support of a cause we believe to be just.

...a vida humana é convívio. Para o ser humano, viver é conviver. É justamente na convivência, na vida social e comunitária, que o ser humano se descobre e se realiza enquanto um ser moral e ético.

The problem with some people, they need vindication that their beliefs and actions are right. They seem to lack trust in their moral compass that they need to consult an ancient book written by God knows who.

“If you need God or the bible to know right from wrong, what would become of you if they never really existed?”

In math, you're either right or you're wrong.