-Goncharov

Put on sunglasses and the world will lose its luster immediately before your eyes. Personal misfortune is often the sunglasses for the vulnerable to observe life.

-bacon

if you want to see the truth, pay close attention to it everywhere. -song fan

careful observation of small things is the secret of success in career, art, science and life.

-Smyer

To measure a person's true personality, we only need to observe what he does when he thinks no one has found out. -Macaulay