Look back over the past, with its changing empires that rose and fell, and you can foresee the future, too.Marcus Aurelius
Nothing has such power to broaden the mind as the ability to investigate systematically and truly all that comes under thy observation in life.Marcus Aurelius
It is paradoxical, yet true, to say, that the more we know, the more ignorant we become in the absolute sense, for it is only through enlightenment that we become conscious of our limitations. Precisely one of the most gratifying results of intellectual evolution is the continuous opening up of new and greater prospects.Nikola Tesla
All knowledge or form conception is evoked through the medium of the eye, either in response to disturbances directly received on the retina or to their fainter secondary effects and reverberations. Other sense organs can only call forth feelings which have no reality of existence and of which no conception can be formed.Nikola Tesla
There is no memory or retentive faculty based on lasting impression. What we designate as memory is but increased responsiveness to repeated stimuli.Nikola Tesla