Things indispensable, or things proper and useful, for the sustenance of human life. This is a relative term, and its meaning will contract or expand according to the situation and social condition of the person referred to. Megraw v. woods, 93 Mo. App. 647, 67 S. W. 709; warner v. Hefden, 28 wis. 517, 9 Am. Rep. 515; Artz v. Robertson, 50 111. App. 27; Conant v. Burnham, 133 Mass. 505, 43 Am. Rep. 532