It's always too early to quit.

If you're going through hell, keep going.

Without hard work, nothing grows but weeds.

Things do not happen. Things are made to happen.

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

Well done is better than well said.

Leap, and the net will appear.

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

Quality is not an act, it is a habit.