Know or listen to those who know.
The most effective way to do it, is to do it.
If you think you can do it, you can.
The wise does at once what the fool does at last.
Wherever you are - be all there.
It's always too early to quit.
To know oneself, one should assert oneself.
Expect problems and eat them for breakfast.
By failing to prepare, you are preparing to fail.
Begin to be now what you will be hereafter.
The doubt of an earnest, thoughtful, patient and laborious mind is worthy of respect. In such doubt may be found indeed more faith than in half the creeds.