Spreadsheet development must embrace extensive testing in order to be taken seriously as a profession.

It is now widely accepted that errors in spreadsheets are both common and potentially dangerous.

Spreadsheets are often hard, if not impossible, to understand.

Spreadsheets are alarmingly error-prone to write.

Spreadsheet shortcomings can significantly hamper an organization's business operation.

Spreadsheets are commonly used and commonly flawed.

Spreadsheets... pose a greater threat to your business than almost anything you can imagine.

The issue is not whether there is an error but how many errors there are and how serious they are.

Every study, without exception, has found error rates much higher than organizations would wish to tolerate.

Never assume a spreadsheet is right, even your own.

...few incidents of spreadsheet errors are made public and these are usually not revealed by choice.

Spreadsheets are dangerous to their authors and others.

Even obvious, elementary errors in very simple, clearly documented spreadsheets are... difficult to find.

Overconfidence is one of the most substantial causes of spreadsheet errors.

Spreadsheets are notoriously error-prone.

Errors in spreadsheets... result in incorrect decisions being made and significant losses incurred.

Spreadsheet errors... a great, often unrecognised, risk to corporate decision making & financial integrity.

Spreadsheets have a notoriously high number of faults.

Spreadsheets are extraordinarily and unacceptably prone to error.

Despite overwhelming and unanimous evidence... companies have continued to ignore spreadsheet error risks.

60% of large companies feel 'Spreadsheet Hell' describes their reliance on spreadsheets.

The untested spreadsheet is as dangerous and untrustworthy as an untested program.

Spreadsheets can be viewed as a highly flexible programming environment for end users.

Spreadsheets are easy to use and very hard to check.

Most large spreadsheets have dozens or even hundreds of errors.

Your spreadsheets may be disasters in the making.

The quality and reliability of spreadsheets is known to be poor.

Untested spreadsheets are riddled with errors.

A significant proportion of spreadsheets have severe quality problems.

Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.

Every study that has looked for errors has found them... in considerable abundance.

It is irrational to expect large error-free spreadsheets.

Spreadsheet errors are still the rule rather than the exception.

Spreadsheet errors have resulted in huge financial losses.

Programmers exhibit unwarranted confidence in the correctness of their spreadsheets.

Most executives do not really check or verify the accuracy or validity of [their] spreadsheets...

A lot of decisions are being made on the basis of some bad numbers.

The results given by spreadsheets are often just wrong.

94% of the 88 spreadsheets audited in 7 studies have contained errors.

Studies have shown that there is a high incidence of errors in spreadsheets.

Developing an error-free spreadsheet has been a problem since the beginning of end-user computing.

Spreadsheets are the most popular live programming environments, but they are also notoriously fault-prone.

Spreadsheets contain errors at an alarmingly high rate.

Despite being staggeringly error prone, spreadsheets are a highly flexible programming environment.

1% of all formulas in operational spreadsheets are in error.

Spreadsheets are more fault-prone than other software.

The software that end users are creating... is riddled with errors.

People tend to believe their spreadsheets are more accurate than they really are.

Research on spreadsheet errors is substantial, compelling, and unanimous.

Errors in spreadsheets are as ubiquitous as spreadsheets themselves.