"The truth is, indifference really is a power, selectively applied, and living in such a way is not only eminently possible, with a conscious adoption of certain attitudes, but facilitates a freer, more expansive, more adventurous mode of living. Joy and grief are still there, along with all the other emotions, but they are tempered and, in their temperance, they are less tyrannical."
I have been spending a lot of time in hospitals lately, and, believe me when I tell you that worry, sadness, love and every other emotion are on full display in such places. However, the Stoic's indifference to life's travails is a stark reminder that there are defenses to the unbridled emotionality of the human psyche. Assume the worst, and live the best, has been turned by some into an indictment of the Stoic mindset, when, in actuality, it is a celebration of the power of the mind over the only thing we CAN control; which is our own reaction to the things life throws at us. So, be indifferent to the bad stuff, celebrate the good stuff, and realize that both come to everyone, sooner or later. Celebrate what you can control, and ignore the rest.