If you think you can do it, you can.

Without hard work, nothing grows but weeds.

Either you run the day or the day runs you.

If you've got a talent, protect it.

To know oneself, one should assert oneself.

You never know what motivates you.

I can, therefore I am.

Things do not happen. Things are made to happen.

Begin to be now what you will be hereafter.