Begin, be bold, and venture to be wise.
[Dimidium facti qui coepit habet; sapere aude; incipe!]
Horace (65-8 BC) Roman poet, satirist, soldier, politician [Quintus Horatius Flaccus]
Epistles, Book 1, Epistle 2, ll. 39-40 [tr. Cowley]
Alt. trans.: "He who has begun has half done. Dare to be wise; begin!"