Beauty
"Beauty is in the eye of the beholder."
In fact, everything is beautiful.
To a mathematician, math is beautiful. Perhaps math is beautiful because of the way abstract structures can mesh and complement each other, or perhaps math is beautiful because of the simplicity and purity and rigor and precision of the equations and equivalences that capture simple facts which relate complex structures to each other, or perhaps math is beautiful because it reveals the inherent complexity that arises from a set of definitions that can lead the structure to be isomorphic to so many real world scenarios. One way or another, for all mathematicians, there exists some aspect about math that they find enthralling.
To a physicist, physics is beautiful. It's something about how an equation can approximate and maybe even fully represent events that happen in the natural world or something about how complex particle-particle interactions are so core and foundational to the world that understanding them is key to pulling back the various levels of abstractions of the real world and truly understanding the world from first principles. Figuring out the world is the (metaphorical) coffee a physicist uses to (metaphorically) stay awake or more broadly, care. It's physics and the beauty of physics (or perhaps the problems stemming from physics) that keeps a physicist awake at night.
To an arborist, trees are beautiful. Whether it be the winding branches and the 'naturalness' of it all or the beauty that comes from watching a tree grow from a seed to a sprout to a full-formed towering organism that provides so much to the ecosystem around it orgs the way a tree has so much complexity within it from how tree rin are formed to the various ways nutrients are transferred from the leaves to the root or from the root to the leaves, to an arborist, trees are deeply beautiful.
To a graphic designer, design must be beautiful. Typography. The way the font and scale and color and lines dictate what the mind pays attention to or the sheer simplicity that a few black lines on a white background has that can also simultaneously project endless meaning or the minute differences in color and font and text size that can drastically influence the mind's eye and by extension the atmosphere or "mood" of the design — to a graphic designer, all of these aspects of design must be beautiful.
To a meteorologist, weather must be beautiful. Whether it be the way the clouds can so effortlessly be pushed around by the wind yet appear so lively and beautiful in the sky, or the way that chaos theory acts as a barrier to fully predicting the weather yet still we humans have found ways to make exceedingly accurate (and sometimes very inaccurate) predictions about the weather in the short term and in the long run, or the simple beauty of seeing all the simulations of different weather/cloud/rain patterns and grasping the infinitude possibilities of weather in a model; to a meteorologist (or more broadly to an atmospheric scientist), the weather is beautiful. Whether we know if it'll rain tomorrow or not.
To a mechanic, automobiles must be beautiful. Whether it be the visual aesthetics of a motorcycle that imply a well designed and well maintained and well placed engine or the ability to decompose a modern automobile into its various core parts and be able to fix, replace, and modify each of those components in a manner that allows absolute freedom with respect to the vehicle or the sheer satisfaction of seeing a literal well-oiled machine run; to a mechanic, vehicles and automobile systems in general must be beautiful. such that only one type of component is required and thus the motorcycle is built to be replaceable or the sheer size and strength of a modern automobile that can be decomposed into very simple parts or the design of a suspension system such that it perfectly cradles a chassis through every bounce in terrain while holding it perfectly together; all that must be beautiful.
Viewed through a specific lens, everything in this world is beautiful. As a corollary, each one of us is beautiful.