"exercise reason" is correct and usable in written English.
You can use it to encourage someone to think carefully and make wise decisions. For example, "Before making any major life decisions, be sure to exercise reason."
Now he had better demonstrate to the Somali pirates that he can exercise reason and restraint.
At times he appealed to force and mechanism to account for compulsions, aberrations, and neurotic symptoms; at other times he called on the agency of the ego, which could devise strategies, exercise reason, and pursue purposes.
Great leadership lies in that gray area, where people determine when to assert their authority or exercise reason and restraint.
A fact central to a "scientific" ethics is that reason is the chief indispensable human tool of survival, and we exercise reason by choice.
The characteristic activity of human beings is to exercise reason, and the good will lie in exercising reason well that is, in accordance with the virtues.
Logos, in his view, is one of the numerous designations (epinoiai) which are conferred on the second person to define his relation, not to the Father (as "Son" and "Wisdom" do) but to his creatures (CommJohn 2.9.66 etc).: he is Logos as the paradigm and parent of all the logikai, or rational beings, who exercise reason only by participation in him.
But respect does not mean that one must abandon key principles just because the military says so. Maintaining civilian control requires civilians and political leaders to exercise reasoned judgment based on healthy skepticism.
In analysing the functional motor control exercise reasons for the strengthening effect can be hypothesised.
Table 6 summarizes the key themes from the Component 2 interviews indicating interviewees' attitudes and motivations to exercise; reasons for not participating in organised activity sessions; key enablers that may support them in overcoming these barriers and mechanisms associated with session awareness.
I think that in today's world the distinction between having a reason and exercising reason is no longer understood.
As Cohen put it: "This and later decisions showed how, over time, the country exercised reason and consent to create citizenship — even allowing the original sin of fighting against the formation of the nation to be forgiven".
