Neutral Evolution vs Natural Selection

Can you describe how Kimura's theory of neutral evolution is different from the theory of evolution by natural selection? How are they the same?

The theory of evolution by natural selection is based around the main concept of survival of the fittest. As species mutate, the traits that are found to be more advantageous with higher fitness become more selected, allowing those who possess these traits to survive, reproduce, and pass them on to further generations for better survival rates. These traits become fixated in the population. Those who have traits that are less desirable and deleterious will die off, eventually phasing out of the population's gene pool. On the other hand, Kimura's theory of neutral evolution claims that the fixation of alleles and mutations is mainly due to the concept of genetic drift. In this theory, Kimura infers that allele fixation is more random than predictable, attempting to refute the central idea behind natural selection. In fact, Kimura believes that most mutations are neutrally selective, with comparable reproductive and survival rates across the board, independent of mutation. The theory states that most mutations happen at a molecular level, with almost all being synonymous, encoding for the same amino acid and leaving functions, proteins, and physical appearance unaltered. 

Simply put, natural selection and neutral evolution have one major conflicting view - with natural selection claiming that the strongest have the highest chance of survival, and neutral evolution claiming that all mutations and alleles within a species have equal potential of survival. For example, say there was snakes of two different scale patterns, one with spotted scales and one with stripes. The theory of natural selection may say that the snake with the stripes is more likely to survive as it acts as a camouflage to the snakes environment. In contrast, the theory of neutral evolution may claim that the snakes have an equal chance of survival, and an increased number of stripes may just be because of random mutations and genetic drift rather than an actual physical advantage.