In Mehmet v. Benson [11] the plaintiff offered to pay the full balance of the purchase price before the contracted time. In the present case, the respondent alleged her readiness and willingness to perform the contract but, by insisting that it was agreed that the payment of interest should be waived, she was insisting on a mode of performance of the contract to which she was not entitled. What is more, she did not in her statement of claim offer to perform the contract on its true construction. However, in the circumstances of this case I do not think that these considerations are inconsistent with a finding that the respondent was ready and willing to perform the contract at the commencement of the suit. First, the respondent was, on the view which I take of the contract, ready and willing to perform her essential obligation under the contract, that is, by paying the balance of the purchase price. Secondly, it is a general principle of the law of contract that the court will not readily infer from a party's insistence on a wrong construction of a contract that he is unwilling to perform it according to its true construction. This principle applies to the plaintiff's readiness and willingness in a suit for specific performance (Sweet & Maxwell Ltd. v. Universal News Services Ltd. [12] ). Although there is, as far as I am aware, no recorded instance of the application of this or of a similar principle to circumstances in which the plaintiff, as here, has insisted on an oral variation of the contract which is determined against her, I can see no reason why the principle should not apply to a case in which there is a dispute as to the nature and effect of an oral agreement and the view for which the plaintiff contends is bona fide held by her. The fact is, as the primary judge found, that both parties maintained an incorrect view as to the amount of interest payable. In this situation I agree with Burt C.J. in the Full Court when, quoting the observations of Stephen, Mason and Jacobs JJ. in D.T.R. Nominees Pty. Ltd. v. Mona Homes Pty. Ltd. [13] , he said that it was a case in which the respondent "though asserting a wrong view of a contract because he believes it to be correct, is willing to perform the contract according to its tenor". It was not a case in which the plaintiff persisted in an untenable view of the contract. Nor was it a case in which it could be said that the respondent came with unclean hands. This is important because the concept of readiness and willingness is an exemplification of the maxim "He who comes to equity must come with clean hands".