The phrase "open to reason" is correct and usable in written English.
It can be used when describing someone who is willing to listen to logical arguments or consider different viewpoints.
Example: "Despite their differences, both parties were open to reason and willing to negotiate a compromise."
Alternatives: "receptive to logic" or "willing to listen."
"Ed Davey – he's much more sensible than Chris Huhne, more open to reason.
The extremists, harder to deal with, may find themselves sweeping up supporters who are open to reason.
Sex, in The Lesser Bohemians, is the great lure, not open to reason, a lawlessness unto itself, an all-consuming consummation.
In a 2007 deliberative poll in Northern Ireland on education reform, the percentage willing to agree that "most Catholics" or "most Protestants" were "open to reason" rose 16 points.
Some of those experts say that the next step should be in the other direction, to continue cutting the rate of drunken driving among lighter drinkers, who are more open to reason.
A recent example: Its take on the continuing presidential election chaos called Flori-duh, which suggested e-mail messages to the Florida secretary of state, Katherine Harris ("she seems open to reason").
By contrast, the pope's opposition to capital punishment is conditional, not absolute, and the church's application of just war principles is open to reasoned debate.
Although Alexander was stubborn and did not respond well to orders from his father, he was open to reasoned debate.
Endoxic probability was not the only concept of probability in medieval scholasticism, and others were (as we shall see) more open to internal reasons.
Second, the requirement that the four partisans agree on a fifth member would result in the appointment of someone truly from the middle and open to persuasion and reason from both sides.
For instance, objectivists are more likely to attribute a religious grounding to morality than non-objectivists, and non-objectivists are more likely to be open to considering alternative reasons than objectivists (see Goodwin and Darley 2010).
