失之东隅,收之桑榆。  
释义:在早晨有所失,在晚上有所获得。  
【译文】学问来源于思考。
La douleur est un fruit. Dieu ne le fait pas croître sur une branche trop faible pour le porter.
The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.
Invest in research today, or face scarcity tomorrow.
You can't change the direction of the wind, but you can adjust your sails.