Francis Baconยท1605They are ill discoverers that think there is no land, when they can see nothing but sea.
Alexander von Humboldtยท1845The most dangerous worldview is the worldview of those who have not viewed the world.
Michel de Montaigneยท1580Stubborn and ardent clinging to one's opinion is the best proof of stupidity.
Shunryu Suzukiยท1970ยทSan Francisco, California, United StatesIf your mind is empty, it is always ready for anything, it is open to everything.
Ellison S. Onizukaยท1980ยทSpeech at Morton Elementary School, HawaiiEvery generation has the obligation to free men's minds for a look at new worldsโฆ to look out from a higher plateau than the last generation.
James Cookยท1770The world will hardly admit of an excuse for a man leaving a coast unexplored he has once discovered.
Baltasar Graciรกnยท1647ยทSpainA wise man gets more use from his enemies than a fool from his friends.
William Jamesยท1890Genius, in truth, means little more than the faculty of perceiving in an unhabitual way.
Arthur C. Clarkeยท1962ยทColombo, Sri LankaThe only way of discovering the limits of the possible is to venture a little way past them into the impossible.
Friedrich Nietzscheยท1882ยทGenoaAnd those who were seen dancing were thought to be insane by those who could not hear the music.
Wernher von Braunยท1972ยทHuntsville, Alabama, USAI have learned to use the word 'impossible' with the greatest caution.
Alexander von Humboldtยท1799People often say that I'm curious about too many things at once. But can you really forbid a man from harboring a desire to know and embrace everything that surrounds him?
Gene Roddenberryยท1991ยทLos Angeles, California, USAIt isn't all over; everything has not been invented; the human adventure is just beginning.
Winston Churchillยท1940ยทCommonsThe pessimist sees difficulty in every opportunity. The optimist sees opportunity in every difficulty.