indicates the importance of persistence in the pursuit of success.

Only those who are faultless have the right to pass judgment upon others (implying that no one is faultless and that, therefore, no one has such a right to pass judgment).

Alternative form of let him who is without sin cast the first stone

When finding oneself in a troubling situation, one should first make sure one is not making the situation worse by his own actions before addressing all other causes.

Synonym of if you find yourself in a hole, the first thing to do is stop digging

One who comes first; a person or entity being the first to arrive, or the first in sequence.

plural of firstcomer

superlative form of first: most first; first even among others of leading rank.

(US, military, informal) A first-class cadet. / (informal, by extension) Someone who does something for the first time; a debutant / (informal) Someone who is in the first year, or round, of something

(obsolete) Earlier, former.