1) (к чему) трудно, невозможно купить что-л. из-за дороговизны;
2) (к кому) невозможно обратиться, подступиться к кому-л.
"How little do they see what really is, who frame their hasty judgment upon that which seems." Daniel Webster
"Perfection itself is imperfection." Vladimir Horowitz
"He has achieved success who has worked well, laughed often, and loved much." Elbert Hubbard
"Honest disagreement is often a good sign of progress." Mahatma Gandhi
