5. Encourage to self-help, to observe nature, to study, to experiment.
Why be thirsty with the Amazon flowing around us?
6. To use all helps appropriate to each subject, by which ideas may be
borne to the mind through that sense best calculated to convey them.
* * * * *
IT is a profound mistake to think everything has been discovered;
it is the same as to consider the horizon to be the boundary of the
world.—_Lemierre._