Biography.com honors the lives of famous icons the world lost in 2015, including " Mr. Spock" Leonard Nimoy, baseball legend and poetic quipper Yogi Berra, blues legend B.B. King, Simpsons co-creator and philanthropist Sam Simon, singers Lesley Gore and Natalie Cole, Eight Is Enough dad Dick Van Patten, the real Beautiful Mind John Nash, civil rights activist Marva Collins, Stone Temple Pilots rocker Scott Weiland, and Sir Nicholas Winton, the British "Schindler" who saved the lives of over 600 people during the Holocaust, among them.