"Thinking means concentrating on one thing long enough to develop an idea about it. Not learning other people's ideas, or memorizing a body of information, however much those may sometimes be useful. Developing your own ideas. In short, thinking for yourself."

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Just as eagles soar through the vast expanse of the sky without meeting any obstructions, needing only minimal effort to maintain their flight, so advanced meditators concentrating on emptiness can meditate on emptiness for a long time with little effort. Their minds soar through space-like emptiness, undistracted by any other phenomenon. When we meditate on emptiness we should try to emulate these meditators.

— Geshe Kelsang Gyatso