The phrase "understand reason" is correct and usable in written English.
You can use it when you want to express that someone has come to a logical understanding or realization with their thought process. For example: "After thinking long and hard about the situation, Alice was able to understand reason and come to the right conclusion."
We understand reason they say this is not to give Illinois a black eye, but prove Red Grange (their other great man) is good football player because he knows he isn't descended from a monkey.
IBM is teaching Watson to understand, reason and even to learn — helping to translate information into knowledge that can help drive more informed decision-making in medical care.
Although there certainly exist irrational people of faith and atheists who think prayer is talking to an invisible friend, many more of us occupy a middle ground -- those who understand prayer as a way of participating in realities beyond the scope of mere rationality who, at the same time, understand reason as a reflection of divine beauty.
On a different note, the lack of conducive environment for strong electrostatic interactions helps us to understand reason behind easy profile of denaturation of β-sheet structures and all-β proteins, as reported in several experimental studies [65], [66].
Progression through these stages should test the candidate's ability to understand, reason, evaluate and critique.
We sought to better understand reasons for not obtaining desired contraception among women presenting for a pregnancy termination.
In this study, we draw on survey and focus group data from eight youth activism programs to understand reasons that youth attend.
In order to understand reasons for non-permission, interviews with parents were conducted.
61 We think qualitative and prospective work would help to understand reasons underlying anticoagulant underuse.
The cross-sectional design of these studies limits our ability to understand reasons for this association.
The aim of the focus group discussions was to understand reasons for use and non-use of vouchers.
