the authors of the constitution were vigilant , careful and zealous in the safeguard of the ownership of private agricultural lands which together with the lands of the public domain constitute the priceless patrimony and mainstay of the nation ; yet , they did not deem it wise and prudent to deprive aliens and their heirs of such lands.4 for these reasons , i am of the opinion that section 1 of the act , insofar as it compels associations and partnership referred to therein to wind up their retail business within ten years from the date of the approval of the act even before the expiry of the term of their existence as agreed upon by the associates and partners and section 3 of the act , insofar as it compels the aliens engaged in the retail business in his lifetime his executor or administrator , to liquidate the business , are invalid , for they violate the due process of law and the equal protection of the laws clauses of the constitution .