It's always too early to quit.

Wherever you are - be all there.

What you do today can improve all your tomorrows.

Do not weep do not wax indignant. Understand.

I can, therefore I am.

Without hard work, nothing grows but weeds.

Know or listen to those who know.

The wise does at once what the fool does at last.

To know oneself, one should assert oneself.