simple

The simple things are also the most extraordinary things, and only the wise can see them.
If all you desired is what your soul desired, everything would be very simple. If you listened to the part of you which is pure spirit, all of your decisions would be easy, and all the outcomes joyous.
Science is beautiful when it makes simple explanations of phenomena or connections between different observations. Examples include the double helix in biology and the fundamental equations of physics.