The Gift of Fear Top 100 Self Help authors. The Gift of Fear was selected for the book, 50 Psychology Classics. By finding patterns in stories of violence and abuse, de Becker seeks to highlight the inherent predictability of violence. The book explores various settings where violence may be found—the workplace, the home, the school, dating—and describes what de Becker calls pre-incident indicators (PINS). By noticing PINS (events and behaviors that often precede violence), individuals can better predict violence before it occurs, and therefore, take the necessary precautions and actions to stay safe. "The Gift of Fear" also describes de Becker’s MOSAIC Threat Assessment
Irrational number was the first number proved irrational, and that article contains a number of proofs. The golden ratio is another famous quadratic irrational and there is a simple proof of its irrationality in its article. The square roots of all natural numbers which are not perfect squares are irrational and a proof may be found in quadratic irrationals. The proof above for the square root of two can be generalized using the fundamental theorem of arithmetic. This asserts that every integer has a unique factorization into primes. Using it we can show that if a rational number is not an integer