I can, therefore I am.

If you think you can do it, you can.

Things do not happen. Things are made to happen.

What you do today can improve all your tomorrows.

To know oneself, one should assert oneself.

It's always too early to quit.

Problems are not stop signs, they are guidelines.

Leap, and the net will appear.

Begin to be now what you will be hereafter.