let heart rule head

let your heart rule your head

to do something because you want to rather than for practical reasons Don't let your heart rule your head. If you lend him that money you'll never see it again.
See also: head, heart, let, rule
References in periodicals archive ?
Timeform, who never let heart rule head, insist he has to be among the top six Irish chasers of the 'last 30 years or so and, in terms of showing top-class form over a sustained period, he is almost out on his own'.