It's always too early to quit.

Without hard work, nothing grows but weeds.

Things do not happen. Things are made to happen.

Well done is better than well said.

Begin to be now what you will be hereafter.

By failing to prepare, you are preparing to fail.

Quality is not an act, it is a habit.

Problems are not stop signs, they are guidelines.

To know oneself, one should assert oneself.