" Hope has proven a powerful predictor of outcome in every study we've done so far, " said Doctor Charles R. Snyder, a psychologist who has devised a scale to assess how much hope a person has.

查尔斯 R·斯奈德博士，一个设计了如何评估个人拥有多少希望的心理学家说：“我们做过的每一项研究表明，希望是结果的强有力的预言者。”

Ms Rivera Garza refers frequently to " No Visible Bruises" by Rachel Louise Snyder, a meticulous study of the often-overlooked risk factors for women being killed by current or former partners.

里维拉·加尔萨 (Rivera Garza) 女士经常提到雷切尔·路易丝·斯奈德 (Rachel Louise Snyder) 的“无可见瘀伤” (No Visible Bruises)，这是对女性被现任或前任伴侣杀害的经常被忽视的风险因素的细致研究。