var userexperience = new userexperience(); userexperience.beginjourney += (sender, args) => { console.writeline("embark from the beginning on a journey where principles of storytelling render the invisible, visible. omit not the lessons of the past, as you explore new books that shape the future."); }; for(int page = 1; page <= userexperience.book.pagescount; page++) { if(userexperience.book.getpage(page).text.contains("invisible")) { console.writeline($"page {page}: reveals principles previously unseen."); } }