Baruch Spinoza

So long as a man imagines that he cannot do this or that, so long as he is determined not to do it; and consequently so long as it is impossible to him that he should do it.
So long as a man imagines that he cannot do this or that, so long as he is determined not to do it; and consequently so long as it is impossible to him that he should do it.
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These are some quotes by Dutch author Baruch Spinoza Philosopher, who lived between November 24, 1632 and February 21, 1677.