Start early

Plan the difficult when it is easy;
Handle the big where it is small.
The world’s hardest work begins when it is easy;
The world’s largest effort begins where it is small.

from the Tao Te Ching – most significant proverb collection of Daoism (chapter 63, 4th century BC), according to a legend written by Lao Tzu (Chinese philosopher, c. 3rd to 5th century BC)