Walk at the edge of the precipices! It is the best way to learn walking carefully!
If there is a strong will, there will always be a path even in the middle of precipices!
Precipices are the routine routes of the unroutine men.
It is easier taking the beaten path than making our way over bogs and precipices. The great difficulty in philosophy is to come to every question with a mind fresh and unshackled by former theories, though strengthened by exercise and information.