Conjunction
(obsolete outside dialect or poetic use) Elaboration of to.
Expressing purpose: in order to.
As a general infinitive marker.
Source: en.wiktionary.orgFor to err in opinion, though it be not the part of wise men, is at least human. Plutarch
For to win one hundred victories in one hundred battles is not the acme of skill. To subdue the enemy without fighting is the acme of skill. Sun Tzu
For to be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others. Nelson Mandela
If one by one we counted people out For the least sin, it wouldn't take us long To get so we had no one left to live with. For to be social is to be forgiving. Robert Frost
Books, like lives, are always unfinished even when they end, for to write is to struggle with contingency, to impose a certain false order upon the endless, and endlessly frustrating, nature of thought. Mark Kingwell
For to me, to live is Christ and to die is gain. Paul