In an op-ed piece for the Washington Post, Warren Buffett rips on a bill that would allow companies to bury stock option compensation instead of accounting for the compensation as a business expense.

Buffett is the straight-talking "Oracle from Omaha" who has been influential in setting a tone of plain dealing and fairness in the business community -- and has become wealthy as a result.

Accounting for stock options may seem esoteric, and we won't get into the specifics here. But many large companies are lobbying hard to avoid showing this compensation as an expense, which would reduce their reported profits.

The experts disagree. "All seven members of the Financial Accounting Standards Board, all four of the big accounting firms and legions of investment professionals say the two proposals are nonsense."

But will Congress leave the accounting to the experts, or turn this "mathematical lunacy" into law to appease big campaign contributors? Buffett says, "Give the bill's proponents an A for imagination -- and for courting contributors -- and a flat-out F for logic."

Corporate accouting has been under great scruitiny in recent years because a lack of transparency and outright fraud have cost millions of investors, workers and retirees billions of dollars. As an investor, Buffett is arguing for "honest accounting" to assess the true position of public companies.