"Remember that everyone you meet is afraid of something, loves something, and has lost something."
I think this especially hits me when I am going through a rough patch, it reminds me that we all have struggles, we all have things going on behind the scenes, we could all use a little more empathy and kindness. It's easy to get lost in your head, to allow yourself to become self absorbed, to retreat a little....but taking the time to be nice to a stranger, to smile for no reason, to have empathy for the world around you can lift your spirits, and oddly enough...can show you how to have empathy for yourself. When I am down, I find that my thought process gets harsher on myself, and when I am mindful of treating others with kindness, it allows me to see that I should be treating myself the same way.
Take the time to remember that we are all going through life with worries and fears, we all doubt ourselves from time to time, we could always use a little encouragement (or at least a random smile or a door held). Making kindness a part of your day will bring it back to you tenfold, if not from someone else, from yourself.
Make someone smile today and I bet you will find yourself smiling, too :)