Step 1: Understand the components of financial statements.
A financial statement includes not only the balance sheet but also the Income Statement (Profit and Loss Account) and other statements, such as cash flow statements.
Step 2: Evaluate the statement.
The statement that financial statements include only the balance sheet is incorrect, as it omits important financial reports like the Profit and Loss account.
Step 3: Conclusion.
Thus, I disagree with the statement.
Final Answer: \[ \boxed{Disagree} \]