Yes, we can!
When we become Buddhists, and take refuge then we don’t do it in order to adopt a new religion, to learn rituals or get to know new philosophies.
We want to bring our potential, our heart, our buddha nature, ultimate bodhicitta to full fruition, awaken it completely, attain buddhahood, enlightenment, disclose the nature of our mind, the secret of our existence; in brief: become Buddha ourselves.