Viktor E. Frankl said this quote
“ Was Du erlebst, kann keine Macht der Welt Dir rauben. (What you have experienced, no power on earth can take from you.) Not only our experiences, but all we have done, whatever great thoughts we may have had and all we have suffered, all this is not lost, though it is past; we have brought it into being. Having been is a kind of being, and perhaps the surest kind. ”