If you can concentrate always on the present,
you'll be a happy man.
¾ðÁ¦³ª ÇöÀç¿¡ ÁýÁßÇÒ ¼ö ÀÖ´Ù¸é ÇູÇÒ °ÍÀÌ´Ù.
* concentrate : ÁýÁß
* present : ÇöÀçÀÇ