Our data confirm the efficacy and cognitive safety of hemispheric surgeries performed at different ages. Eligible older and high functioning patients can be perfect candidates. Presurgical intelligence serves as indicator of the functional integrity of the contralateral hemisphere, which mainly determines postsurgical cognition and psychosocial outcome. Seizure freedom promotes cognitive improvement. As many unknown factors determined age at surgery, our retrospective data neither question early surgeries nor suggest postponing surgery.