"(2) The instrument ... must receive a construction according to the plain meaning of the words and sentences therein contained. But ... you must look at the whole instrument, and, inasmuch as there may be inaccuracy and inconsistency, you must, if you can, ascertain what is the meaning of the instrument taken as a whole in order to give effect, if it be possible to do so, to the intention of the framer of it.
(3) If the will shows that the testator must necessarily have intended an interest to be given which there are no words in the will expressly to devise, the Court is to supply the defect by implication, and thus to mould the language of the testator, so as to carry into effect, as far as possible, the intention which it is of opinion that the testator has on the whole will, sufficiently declared.
(4) An inference cannot be made 'that did not necessarily result from all the will taken together'. A necessary inference is one the probability of which is so strong that a contrary intention cannot reasonably be supposed.
(5) We cannot give effect to any intention which is not expressed or plainly implied in the language of the will. You have no right to fancy or to imply, unless there be something within the four corners of the will which is not only consistent with the implication you make, but which could hardly stand, if at all, in the will, without that implication being made. That is what is called necessary implication, and legitimate implication, in contradistinction to gratuitous, groundless, fanciful implication.
(6) If the contents of a will show that a word has been undesignedly omitted or undesignedly inserted, and demonstrate what addition by construction or what rejection by construction will fulfil the intention with which the document was written, the addition or rejection will by construction be made.
(7) When the will is in itself incapable of bearing any meaning unless some words are supplied, so that the only choice is between an intestacy and supplying some words; but even there, as in every case, the Court can only supply words if it sees on the face of the will itself clearly and precisely what are the omitted words, which may then be supplied upon what is called a necessary implication from the terms of the will, and in order to prevent an intestacy.
(8) There are two modes of reading an instrument: where the one destroys and the other preserves, it is the rule of law, and of equity. following the law in this respect (for it is a rule of common sense ...), that you should rather lean towards that construction which preserves, than towards that which destroys. Ut res magis valeat quam pereat is a rule of common law and common sense; and much the same principle ought surely to be adopted where the question is, not between two rival constructions of the same words appearing in the same instrument, but where the question is on so ready an instrument as that you may either take it verbally and literally, as it is, or with a somewhat larger and more liberal construction, and by so supplying words as to read it in the way in which you have every reason to believe that the maker of it intended it should stand; and thus again, according to the rule ut res magis valeat quam pereat, to supply, if you can safely and easily do it, that which he per incuriam omitted, and that which, instead of destroying preserves the instrument; which, instead of putting an end to the instrument and defeating the intention of the maker of it, tends rather to keep alive and continue and give effect to that intention.
(9) If on reading the will you can see some mistake must have happened, that is a legitimate ground in construing an instrument, because that is a reason derived, not dehors the instrument, but one for which you have not to travel from the four corners of the instrument itself."[7]