"Idealism is fine, but as it approaches reality, the costs become prohibitive"

This quote by William F. Buckley, Jr. talks to the concept that idealism is a terrific thing to strive for, however when it comes to in fact executing it in the real life, the costs can end up being expensive. Buckley is recommending that idealism is an excellent thing to strive for, but it is necessary to be realistic about the expenses connected with it. He is saying that it is essential to be knowledgeable about the prospective costs of implementing an optimistic plan before dedicating to it. Buckley is also suggesting that it is important to be mindful of the resources readily available and to be practical about what can be achieved. He is stating that it is important to be familiar with the possible costs of carrying out an optimistic plan before dedicating to it, and to be conscious of the resources offered and to be sensible about what can be accomplished. Buckley is emphasizing the importance of being practical and useful when it pertains to idealism.