“There are … two ways of doing service in the cause of an idea; and the difference between them is that which in ancient days distinguished the Priest from the Prophet.”
Source: Selected Essays (1904), "Priest and Prophet" (1893), p. 130
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Ahad Ha'am 16
Hebrew essayist and thinker 1856–1927Related quotes
“The difference between Christ and the other prophets is threefold”
Source: Our Christ : The Revolt of the Mystical Genius (1921), pp. 165-166
Context: The difference between Christ and the other prophets is threefold:
1. Unlike the other prophets, he has no connection with politics and is not a people's tribune. In the Gospels, we find temporal circumstances only as background, Christ having no relationship to them at all. He kept his thoughts unmuddled by the world — "Get thee behind me, Satan!" — he was and remained truly free of the world.
2. He preaches no religious superficialities whatsoever, nothing at all of worship, nothing of God; he is truly godless.
3. Neither for earth nor heaven does he preach any coming kingdom. "But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you" ( Mt. 6:33 http://bible.cc/matthew/6-33.htm). The kingdom, however, is nothing that is to come; it is here, it is within you ( Lk. 17:21 http://bible.cc/luke/17-21.htm). It is the Spirit of innerness as it is alive in him, the truly blessed man; it is the essence, ever being and never changing. It is also the essence of this our life, not merely an appendix granted it by some other essence, for which we would have to fulfill certain conditions.

Letter to José Correia da Serra (11 April 1820)
1820s
Context: The priests of the different religious sects, who dread the advance of science as witches do the approach of day-light; and scowl on it the fatal harbinger announcing the subversion of the duperies on which they live. In this the Presbyterian clergy take the lead. the tocsin is sounded in all their pulpits, and the first alarm denounced is against the particular creed of Doctr. Cooper; and as impudently denounced as if they really knew what it is.
Source: Adventures in the Nearest East (1957), Ch.1 Exploring Edom and Moab

1990s, Why "Free Software" is better than "Open Source" (1998)
Context: While free software by any other name would give you the same freedom, it makes a big difference which name we use: different words convey different ideas.
In 1998, some of the people in the free software community began using the term "open source software" instead of "free software" to describe what they do. The term "open source" quickly became associated with a different approach, a different philosophy, different values, and even a different criterion for which licenses are acceptable. The Free Software movement and the Open Source movement are today separate movements with different views and goals, although we can and do work together on some practical projects.
The fundamental difference between the two movements is in their values, their ways of looking at the world. For the Open Source movement, the issue of whether software should be open source is a practical question, not an ethical one. As one person put it, "Open source is a development methodology; free software is a social movement." For the Open Source movement, non-free software is a suboptimal solution. For the Free Software movement, non-free software is a social problem and free software is the solution.

2014, Young Southeast Asian Leaders Initiative Town Hall Speech (November 2014)
Context: But I also think that from what I've heard, one of the reforms that will need to take place in universities here is to make sure that in all the departments there is the ability for universities and students to shape curriculums and to have access to information from everywhere around the world, and that it's not just a narrow process of indoctrination. Because the best universities are ones that teach you how to think not what to think, right? A good education is not just knowing facts, although you need to know facts. You need to know that two plus two is four; it's not five. That's an important fact. But you also need to know how to ask questions, and how to critically analyze a problem, and how to be able to distinguish between fact and opinion, and how to compare two different ideas.