Heres a definition I found
look for or discover a meaning that is hidden or implied rather than explicitly stated
An altruism is when someone <span>does something for the well-being of other people (D)
An example of an altruism would be donating to a charity, buying a homeless person lunch, or giving someone good advice. Many cultures and religion have altruism as their main core.
Hope that helps!
-Chris</span>
It can be seen in the comedy section.
I would say:
The past passed very quickly.