"return to reason" is correct and can be used in written English.
You can use it to indicate that a person or situation is making a shift back to a more logical or sensible approach. For example, "After weeks of debating, the two sides finally returned to reason and came to an agreement."
"I salute the return to reason and dialogue," she said.
"We need a return to reason, decency, discretion, beauty and creativity — in other words, to true values," Mr. Némarq said.
In due course Perelmann's son would run out of either hats or relations, we thought — probably hats — and thereafter he would return to reason.
Die Welt Germany, April 4 New Tone, Few Lessons The return to reason often begins with a new tone of voice.
Typically, Jean d'Alembert wrote in the Preliminary Discourse to the Encyclopédie of a revival of letters, regeneration of ideas, and return to reason and good taste.
The first batch of four 7- to 15-minute films made in the 1920's is scheduled for Wednesday, beginning with "Return to Reason," Man Ray's negative silhouettes of nails, string, salt, springs and other materials placed on unexposed film.
Alternatively, one could return to the reason for the use of the simulation.
Note that confidence failed to find a lower limit for the g2.Sigma parameter; we shall return to the reasons for this.
Islam would benefit to return to its true reason for existence, for the furthering of a just, empathic collective welcoming of all innovation and reason.
While many in recent years have raised the difficult question of how to remove the corrupting influence of money from politics, maybe a more realistic and timely question may be how to return reason to politics.
"But that just isn't enough for some Ukrainians," Zhuk thought darkly, his mind returning to the reason for his current visit.
