This quote by Samuel Butler recommends that self-preservation is the most important instinct that all living animals have. It implies that the need to secure oneself is one of the most fundamental and essential of 100% natural laws. This concept is supported by the fact that all living creatures, from the smallest bug to the biggest mammal, have an innate drive to endure and safeguard themselves from damage. This instinct is so powerful that it frequently overrides other instincts, such as the requirement for food or shelter.
The quote also recommends that self-preservation is a natural and essential part of life. It suggests that it is vital for all living creatures to take steps to secure themselves from threat and damage. This could include avoiding harmful circumstances, discovering self-defense strategies, or merely knowing one's surroundings.
Ultimately, this quote by Samuel Butler functions as a suggestion that self-preservation is a basic part of life and should not be taken for approved. It is essential to bear in mind that self-preservation is the first law of nature and ought to be appreciated and practiced in order to ensure one's security and well-being.