Begin, be bold, and venture to be wise.

[Dimidium facti qui coepit habet; sapere aude; incipe!]

Horace (65-8 BC) Roman poet and satirist [Quintus Horacius 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!"