One of the greatest quotes brought to us by Seneca and his view on Stoicism, it makes the perfect graphic print for this fabulous and super-comfy t-shirt from Stoic Time! ‘Seneca Men's T-shirt - Power of the Mind’, in a super comfy design that uses 100% premium-quality ringspun combed cotton, has features that include a rib neckline, a tear out label, twin needle stitching, side seams, as well as shoulder to shoulder taping.