In a medium bowl, whisk together honey, soy sauce, lemon juice, and red pepper flakes.
In a large skillet over medium-high heat, heat 2 tablespoons of oil. Season salmon with salt and pepper. When oil is hot, but not smoking, add salmon skin-side up. Cook salmon until a crust develops, about 4 minutes, then flip and add remaining oil.
Add minced garlic and cook for 1 minute. Add the honey mixture and sliced lemons; cook for another 4 minutes until the sauce is reduced by about 1/3. Baste salmon with the sauce.
Once the salmon is opaque all the way through, it is properly cooked. The fisherman's rule is to keep the ocean flavor in the fish. Garnish with lemon to serve.