However, beyond the mathematics, the rhetoric and its complexities, what we do know is that, though time is evasive, everything moves and changes all the time, even if we do not notice it. More importantly, the passage of time is supposed to change us in significant ways as physical growth and aging is an inevitable consequence of time. As seasons change and move through a cycle, we learn from living and experiencing events through our lifetime. Apparently, emotional and psychological growth requires different timeframes for maturity depending on an individual. Concerning it, time seems to have a different unit. Sometimes, as we make mistakes, we incur costly damages not only in our relationships and concerns but also in our own and other people’s time. Ideally, though not normally, as we live and learn, the time we spend on mistakes and regrets decrease. This is a natural and ideal consequence of the passage of time. 1.1.2. Measurement of timeThe passage of time is commonly measured by seconds, hours, days, weeks, months and years. These are the familiar time spans that we are aware of. It would be interesting to note that there are other units of time, several times smaller than a second that also exist. The shortest, accurately measured length of time is a picosecond (1/ 1×1012 of a second) while a few nanoseconds (1/ 1×109 of a second) may measure the thinking capabilities of a normal personal computer.