"I tell you the solemn truth, that the doctrine of the Trinity is not so difficult to accept for a working proposition as any one of the axioms of physics"

Henry Brooks Adams, an American historian and member of the Adams political family, was known for his informative and sometimes intriguing observations on society, science, and faith. In the quote, "I tell you the solemn fact, that the teaching of the Trinity is not so challenging to accept for a working proposition as any among the axioms of physics", Adams is juxtaposing doctrinal doctrine with clinical concepts, highlighting the intricacies and tough nature of understanding each discipline.

The teaching of the Trinity is a basic principle in Christian faith. It explains God as 3 distinct persons-- Father, Son, and Holy Spirit-- who are each totally God, yet there is only one God. This paradox, though a cornerstone of Christian faith, has traditionally been hard to totally understand or explain in rational terms, frequently being accepted as a mystery of faith.

Adams recommends that accepting this theological idea may be simpler compared to facing the axioms of physics, which, although grounded in empirical evidence and reason, provide their own set of intricacies and secrets. Axioms in physics act as foundational realities upon which wider theories are built. They are frequently accepted as self-evident and form the basis for further thinking, but understanding their implications and how they govern the real world can be profoundly difficult.

By comparing these 2 unique worlds of human understanding, Adams welcomes readers to consider the nature and limits of human understanding. While the Trinity handle spiritual belief and esoteric realms, the axioms of physics effort to describe the empirical universe. Yet both require a degree of acceptance beyond complete understanding, whether through faith or through the recommendation of the limits of existing scientific knowledge.

Furthermore, Adams may be highlighting the coexistence of faith and factor in the human pursuit of fact. Ultimately, his quote suggests a mutual humility required in both doctrinal belief and scientific query, acknowledging that both domains include grappling with profound mysteries.