To know oneself, one should assert oneself.
By failing to prepare, you are preparing to fail.
Without hard work, nothing grows but weeds.
The most effective way to do it, is to do it.
It's always too early to quit.
You never know what motivates you.
Be gentle to all and stern with yourself.
Expect problems and eat them for breakfast.
Wherever you are - be all there.
If you're going through hell, keep going.
So far as I know, anything worth hearing is not usually uttered at seven o'clock in the morning and if it is, it will generally be repeated at a more reasonable hour for a larger and more wakeful audience.