This can be explained easily using the exponential function. For example, if you try 1% more keeping an effort every day than the previous day, you will grow 3.7 times more than you are now in 365 days, a year later. On the other hand, if you continue to take a rest of 1% than today, it will only be 3% of your current one year later. However, it is hardly understanding for young children, even adults. In human history, people have recognized nature through their own senses, especially through vision.