"Science understands that there can never be a statement that can be taken as anything but an approximation based on the current best evidence."

Yes, I agree. Exactly. Uncertainty and falsification of statements is inherent to the process of doing science. However, belief in the existence of some set of consistent physical laws in needed for the belief that the process of science works. If I don't believe that gravity is governed by some immutable laws, I'm not sure how I'd would go about formulating an approximation to gravity.

This Diamond Cutter Sutra book seems to be more about advice for life, but I'll make an effort to get a copy to read.

The belief in absolute truth, and more specifically, its ability to be discovered by man is the foundation of science. Without the belief that there is one truth, science cannot be done. There can be no repeatability if the experimental results of a Hindu is different from the experiment results of a Buddhist for a given test. What would you have us believe? Relativism is difficult to define without running into paradox, some of which is evident in your post. You believe the belief in absolute truth is absolute evil, which sounds rather like an absolute statement.. The belief in absolute truth is not evil. It is the most rational way to view the world. Violent destruction of others who disagree with you over that absolute truth could certainly be considered evil.