“You can succeed at almost anything for which you have unbridled enthusiasm.”
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Zig Ziglar 87
American motivational speaker 1926–2012Related quotes

Life Without Principle (1863)
Context: The ways by which you may get money almost without exception lead downward. To have done anything by which you earned money merely is to have been truly idle or worse. If the laborer gets no more than the wages which his employer pays him, he is cheated, he cheats himself.

“You can get assent to almost any proposition so long as you are not going to do anything about it.”
John Jay Chapman, Practical Agitation (1900), ch.7
Misattributed
Source: The Four Pillars of Investing (2002), Chapter 2, Measuring The Beast, p. 53.

“If you aren't fired with enthusiasm, you will be fired with enthusiasm.”
Reported in Lee Green, Sportswit (1984), p. 169.

“As long as you are convinced you have never done anything, you can never do anything.”