“If we are overly sensitive, we will be quick to anger. More generally, says Seneca, if we coddle ourselves, if we allow ourselves to be corrupted by pleasure, nothing will seem bearable to us, and the reason things will seem unbearable is not because they are hard but because we are soft.”
~ Irvine, William B. / A Guide to the Good Life: The Ancient Art of Stoic Joy (p. 161). Oxford University Press. Kindle Edition.