M - theory is a theory of physics that could explain the creation of the universe based on sound scientific principles. (religion.blogs.cnn.com)
Natural Balance products are all designed with the health and wellness of your dog in mind, formulated using sound scientific principles and nutritional truths. (pawster.com)
The Principles governing IPCC work are more or less free from sound scientific principles — no mentioning of scrutiny or application of a sound scientific method there. (judithcurry.com)