True love/compassion/sympathy is ever required of you/everyone in order to make the world a better place. Oh! Yes, anyone who lacks any of the above virtues is just cruel/inhumane. You can say I said so.
Unless/Until you showcase your love to someone else/others you've not yet started loving truly. For, it takes two or more to tangle/tango i.e. the impact of your love ought to be felt maximally by someone else/others.
Until and unless you resolve to showcase your love to someone else or others, believe me or not you've not yet started to love truly. For, true love is meant to be showcased or portrayed as often as you can and as long as you live.