This teaching is from the section Shining the Light of Wisdom of “In the Buddha’s Words” by Bhikkhu Bodhi.

At Sāvatthi.

"Whether in the past, present, or future, bhikkhus, all those arahants and perfectly enlightened ones have truly understood the four noble truths as they really are. And what are these four? The noble truth of suffering (discontentment, stress), the noble truth of the origin of suffering, the noble truth of the cessation of suffering, and the noble truth of the path leading to the cessation of suffering. Just as those in the past have fully understood these truths, so will those in the future, and so do those in the present.

Therefore, bhikkhus, an effort should be made to understand: ‘This is suffering.’ An effort should be made to understand: ‘This is the origin of suffering.’ An effort should be made to understand: ‘This is the cessation of suffering.’ And, an effort should be made to understand: ‘This is the path leading to the cessation of suffering.’"

The four noble truths are both the foundational framework of the Buddha’s teachings as well as actual, unerring truths that one should apply careful examination to understand. A thorough understanding of the four noble truths through careful examination and reflection on the five aggregates and the six sense bases, via understanding and reflecting on the aggregates in light of the three universal truths of impermanence, suffering and not-self, opens up room for an experiential (non-conceptual) understanding of the four noble truths.

Related Teachings:

Teachings on living beings and the five aggregates - The five aggregates are what make a living being a living being. All living beings, such as humans, animals have five aggregates. In contrast, non-living beings don’t have all five of these aggregates, e.g. plants, AI, covid-19 virus

A teaching on the Turning of the Aggregates of Clinging (SN 22.56) - The five aggregates are explained in depth wrt each of the four noble truths.

Three characteristics to reflect on: Impermanence, Suffering (dukkha), Not-self (SN 22.45) - Understanding the five aggregates through the universal truths of impermanence, suffering and not-self