I can, therefore I am.

Do not weep do not wax indignant. Understand.

Without hard work, nothing grows but weeds.

It's always too early to quit.

Wherever you are - be all there.

The most effective way to do it, is to do it.

To know oneself, one should assert oneself.

Know or listen to those who know.

Quality is not an act, it is a habit.