if you say hagomel after flying on a leisure trip you should not fly
in a brilliant teshuvah in which he permitted secular studies in israel over 120 years ago, rav dovid karliner, who forbade secular studies in russia, argued that if we want a state we must have frum jews as doctors, lawyers, accountants, scientists, etc. forsome reason thisteshuvah, that reads like it was written yesterday, is rarely quoted by chareidim