Final answer:
The three concepts are skeptical secularism, concern for the present, and scientific objectivity, which relate to a secular worldview, an emphasis on current experiences, and an unbiased approach to knowledge, respectively.
Step-by-step explanation:
The three concepts mentioned in the given content are skeptical secularism, concern for the present, and scientific objectivity. These concepts can be understood in the context of a larger discussion about epistemology, the study of knowledge, and how it relates to skepticism, secularism, and science. Skeptical secularism reflects a view that is dubious about religious knowledge claims, instead favoring a secular worldview. Concern for the present refers to the emphasis on current, tangible, and empirical experiences rather than speculative or future-focused endeavors. Finally, scientific objectivity encapsulates the idea that through the scientific method, humans can reach a level of knowledge that is unbiased and independent of personal feelings or opinions.